Journal of Physics: Photonics

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abstracts" class="reveal-all-trigger mr-2 small" data-reveal-text="Open all abstracts" data-link-purpose-append="in this tab" data-link-purpose-append-open="in this tab"> Open all abstracts<span class="offscreen-hidden">, in this tab</span> </button> </p>  <div class="art-list"> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ac1ef4" class="art-list-item-title event_main-link">2022 Roadmap on integrated quantum photonics</a> <p class="small art-list-item-meta"> Galan Moody <em>et al</em> 2022 <em>J. Phys. Photonics</em> <b>4</b> 012501 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="2022 Roadmap on integrated quantum photonics" data-link-purpose-append-open="2022 Roadmap on integrated quantum photonics">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ac1ef4/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, 2022 Roadmap on integrated quantum photonics</span></a> <a href="/article/10.1088/2515-7647/ac1ef4/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, 2022 Roadmap on integrated quantum photonics</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>Integrated photonics will play a key role in quantum systems as they grow from few-qubit prototypes to tens of thousands of qubits. The underlying optical quantum technologies can only be realized through the integration of these components onto quantum photonic integrated circuits (QPICs) with accompanying electronics. In the last decade, remarkable advances in quantum photonic integration have enabled table-top experiments to be scaled down to prototype chips with improvements in efficiency, robustness, and key performance metrics. These advances have enabled integrated quantum photonic technologies combining up to 650 optical and electrical components onto a single chip that are capable of programmable quantum information processing, chip-to-chip networking, hybrid quantum system integration, and high-speed communications. In this roadmap article, we highlight the status, current and future challenges, and emerging technologies in several key research areas in integrated quantum photonics, including photonic platforms, quantum and classical light sources, quantum frequency conversion, integrated detectors, and applications in computing, communications, and sensing. With advances in materials, photonic design architectures, fabrication and integration processes, packaging, and testing and benchmarking, in the next decade we can expect a transition from single- and few-function prototypes to large-scale integration of multi-functional and reconfigurable devices that will have a transformative impact on quantum information science and engineering.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ac1ef4">https://doi.org/10.1088/2515-7647/ac1ef4</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad1a3b" class="art-list-item-title event_main-link">Roadmap on electromagnetic metamaterials and metasurfaces</a> <p class="small art-list-item-meta"> Tie Jun Cui <em>et al</em> 2024 <em>J. Phys. Photonics</em> <b>6</b> 032502 </p> <div class="art-list-item-tools small wd-abstr-upper"> <a href="/article/10.1088/2515-7647/ad1a3b/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Roadmap on electromagnetic metamaterials and metasurfaces</span></a> <a href="/article/10.1088/2515-7647/ad1a3b/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Roadmap on electromagnetic metamaterials and metasurfaces</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad1a3b">https://doi.org/10.1088/2515-7647/ad1a3b</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/acb57b" class="art-list-item-title event_main-link">Roadmap for optical tweezers</a> <p class="small art-list-item-meta"> Giovanni Volpe <em>et al</em> 2023 <em>J. Phys. Photonics</em> <b>5</b> 022501 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Roadmap for optical tweezers" data-link-purpose-append-open="Roadmap for optical tweezers">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/acb57b/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Roadmap for optical tweezers</span></a> <a href="/article/10.1088/2515-7647/acb57b/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Roadmap for optical tweezers</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>Optical tweezers are tools made of light that enable contactless pushing, trapping, and manipulation of objects, ranging from atoms to space light sails. Since the pioneering work by Arthur Ashkin in the 1970s, optical tweezers have evolved into sophisticated instruments and have been employed in a broad range of applications in the life sciences, physics, and engineering. These include accurate force and torque measurement at the femtonewton level, microrheology of complex fluids, single micro- and nano-particle spectroscopy, single-cell analysis, and statistical-physics experiments. This roadmap provides insights into current investigations involving optical forces and optical tweezers from their theoretical foundations to designs and setups. It also offers perspectives for applications to a wide range of research fields, from biophysics to space exploration.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/acb57b">https://doi.org/10.1088/2515-7647/acb57b</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/acf972" class="art-list-item-title event_main-link">The micro-LED roadmap: status quo and prospects</a> <p class="small art-list-item-meta"> Chien-Chung Lin <em>et al</em> 2023 <em>J. Phys. Photonics</em> <b>5</b> 042502 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="The micro-LED roadmap: status quo and prospects" data-link-purpose-append-open="The micro-LED roadmap: status quo and prospects">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/acf972/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, The micro-LED roadmap: status quo and prospects</span></a> <a href="/article/10.1088/2515-7647/acf972/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, The micro-LED roadmap: status quo and prospects</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>Micro light-emitting diode (micro-LED) will play an important role in the future generation of smart displays. They are found very attractive in many applications, such as maskless lithography, biosensor, augmented reality (AR)/mixed reality etc, at the same time. A monitor that can fulfill saturated color rendering, high display resolution, and fast response time is highly desirable, and the micro-LED-based technology could be our best chance to meet these requirements. At present, semiconductor-based red, green and blue micro-LED chips and color-conversion enhanced micro-LEDs are the major contenders for full-color high-resolution displays. Both technologies need revolutionary ways to perfect the material qualities, fabricate the device, and assemble the individual parts into a system. In this roadmap, we will highlight the current status and challenges of micro-LED-related issues and discuss the possible advances in science and technology that can stand up to the challenges. The innovation in epitaxy, such as the tunnel junction, the direct epitaxy and nitride-based quantum wells for red and ultraviolet, can provide critical solutions to the micro-LED performance in various aspects. The quantum scale structure, like nanowires or nanorods, can be crucial for the scaling of the devices. Meanwhile, the color conversion method, which uses colloidal quantum dot as the active material, can provide a hassle-free way to assemble a large micro-LED array and emphasis the full-color demonstration via colloidal quantum dot. These quantum dots can be patterned by porous structure, inkjet, or photo-sensitive resin. In addition to the micro-LED devices, the peripheral components or technologies are equally important. Microchip transfer and repair, heterogeneous integration with the electronics, and the novel 2D material cannot be ignored, or the overall display module will be very power-consuming. The AR is one of the potential customers for micro-LED displays, and the user experience so far is limited due to the lack of a truly qualified display. Our analysis showed the micro-LED is on the way to addressing and solving the current problems, such as high loss optical coupling and narrow field of view. All these efforts are channeled to achieve an efficient display with all ideal qualities that meet our most stringent viewing requirements, and we expect it to become an indispensable part of our daily life.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/acf972">https://doi.org/10.1088/2515-7647/acf972</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ace869" class="art-list-item-title event_main-link">2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments</a> <p class="small art-list-item-meta"> Nemanja Jovanovic <em>et al</em> 2023 <em>J. Phys. Photonics</em> <b>5</b> 042501 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments" data-link-purpose-append-open="2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ace869/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, 2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments</span></a> <a href="/article/10.1088/2515-7647/ace869/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, 2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>Photonic technologies offer numerous functionalities that can be used to realize astrophotonic instruments. The most spectacular example to date is the ESO Gravity instrument at the Very Large Telescope in Chile that combines the light-gathering power of four 8 m telescopes through a complex photonic interferometer. Fully integrated astrophotonic devices stand to offer critical advantages for instrument development, including extreme miniaturization when operating at the diffraction-limit, as well as integration, superior thermal and mechanical stabilization owing to the small footprint, and high replicability offering significant cost savings. Numerous astrophotonic technologies have been developed to address shortcomings of conventional instruments to date, including for example the development of photonic lanterns to convert from multimode inputs to single mode outputs, complex aperiodic fiber Bragg gratings to filter OH emission from the atmosphere, complex beam combiners to enable long baseline interferometry with for example, ESO Gravity, and laser frequency combs for high precision spectral calibration of spectrometers. Despite these successes, the facility implementation of photonic solutions in astronomical instrumentation is currently limited because of (1) low throughputs from coupling to fibers, coupling fibers to chips, propagation and bend losses, device losses, etc, (2) difficulties with scaling to large channel count devices needed for large bandwidths and high resolutions, and (3) efficient integration of photonics with detectors, to name a few. In this roadmap, we identify 24 key areas that need further development. We outline the challenges and advances needed across those areas covering design tools, simulation capabilities, fabrication processes, the need for entirely new components, integration and hybridization and the characterization of devices. To realize these advances the astrophotonics community will have to work cooperatively with industrial partners who have more advanced manufacturing capabilities. With the advances described herein, multi-functional integrated instruments will be realized leading to novel observing capabilities for both ground and space based platforms, enabling new scientific studies and discoveries.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ace869">https://doi.org/10.1088/2515-7647/ace869</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/abf02e" class="art-list-item-title event_main-link">Virtual reality and augmented reality displays: advances and future perspectives</a> <p class="small art-list-item-meta"> Kun Yin <em>et al</em> 2021 <em>J. Phys. Photonics</em> <b>3</b> 022010 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Virtual reality and augmented reality displays: advances and future perspectives" data-link-purpose-append-open="Virtual reality and augmented reality displays: advances and future perspectives">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/abf02e/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Virtual reality and augmented reality displays: advances and future perspectives</span></a> <a href="/article/10.1088/2515-7647/abf02e/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Virtual reality and augmented reality displays: advances and future perspectives</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>Virtual reality (VR) and augmented reality (AR) are revolutionizing the ways we perceive and interact with various types of digital information. These near-eye displays have attracted significant attention and efforts due to their ability to reconstruct the interactions between computer-generated images and the real world. With rapid advances in optical elements, display technologies, and digital processing, some VR and AR products are emerging. In this review paper, we start with a brief development history and then define the system requirements based on visual and wearable comfort. Afterward, various VR and AR display architectures are analyzed and evaluated case by case, including some of the latest research progress and future perspectives.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/abf02e">https://doi.org/10.1088/2515-7647/abf02e</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad46a6" class="art-list-item-title event_main-link">Roadmap on perovskite light-emitting diodes</a> <p class="small art-list-item-meta"> Ziming Chen <em>et al</em> 2024 <em>J. Phys. Photonics</em> <b>6</b> 032501 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Roadmap on perovskite light-emitting diodes" data-link-purpose-append-open="Roadmap on perovskite light-emitting diodes">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad46a6/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Roadmap on perovskite light-emitting diodes</span></a> <a href="/article/10.1088/2515-7647/ad46a6/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Roadmap on perovskite light-emitting diodes</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>In recent years, the field of metal-halide perovskite emitters has rapidly emerged as a new community in solid-state lighting. Their exceptional optoelectronic properties have contributed to the rapid rise in external quantum efficiencies (EQEs) in perovskite light-emitting diodes (PeLEDs) from <1% (in 2014) to over 30% (in 2023) across a wide range of wavelengths. However, several challenges still hinder their commercialization, including the relatively low EQEs of blue/white devices, limited EQEs in large-area devices, poor device stability, as well as the toxicity of the easily accessible lead components and the solvents used in the synthesis and processing of PeLEDs. This roadmap addresses the current and future challenges in PeLEDs across fundamental and applied research areas, by sharing the community's perspectives. This work will provide the field with practical guidelines to advance PeLED development and facilitate more rapid commercialization.</p><h2 id="artAbst2" class="collapse-blocked"></h2><p><span style="display: none;">figure placeholder</span></p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad46a6">https://doi.org/10.1088/2515-7647/ad46a6</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ab77a2" class="art-list-item-title event_main-link">Silicon carbide color centers for quantum applications</a> <p class="small art-list-item-meta"> Stefania Castelletto and Alberto Boretti 2020 <em>J. Phys. Photonics</em> <b>2</b> 022001 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Silicon carbide color centers for quantum applications" data-link-purpose-append-open="Silicon carbide color centers for quantum applications">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ab77a2/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Silicon carbide color centers for quantum applications</span></a> <a href="/article/10.1088/2515-7647/ab77a2/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Silicon carbide color centers for quantum applications</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>Silicon carbide has recently surged as an alternative material for scalable and integrated quantum photonics, as it is a host for naturally occurring color centers within its bandgap, emitting from the UV to the IR even at telecom wavelength. Some of these color centers have been proved to be characterized by quantum properties associated with their single-photon emission and their coherent spin state control, which make them ideal for quantum technology, such as quantum communication, computation, quantum sensing, metrology and can constitute the elements of future quantum networks. Due to its outstanding electrical, mechanical, and optical properties which extend to optical nonlinear properties, silicon carbide can also supply a more amenable platform for photonics devices with respect to other wide bandgap semiconductors, being already an unsurpassed material for high power microelectronics. In this review, we will summarize the current findings on this material color centers quantum properties such as quantum emission via optical and electrical excitation, optical spin polarization and coherent spin control and manipulation. Their fabrication methods are also summarized, showing the need for on-demand and nanometric control of the color centers fabrication location in the material. Their current applications in single-photon sources, quantum sensing of strain, magnetic and electric fields, spin-photon interface are also described. Finally, the efforts in the integration of these color centers in photonics devices and their fabrication challenges are described.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ab77a2">https://doi.org/10.1088/2515-7647/ab77a2</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ac76f9" class="art-list-item-title event_main-link">Roadmap on wavefront shaping and deep imaging in complex media</a> <p class="small art-list-item-meta"> Sylvain Gigan <em>et al</em> 2022 <em>J. Phys. Photonics</em> <b>4</b> 042501 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Roadmap on wavefront shaping and deep imaging in complex media" data-link-purpose-append-open="Roadmap on wavefront shaping and deep imaging in complex media">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ac76f9/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Roadmap on wavefront shaping and deep imaging in complex media</span></a> <a href="/article/10.1088/2515-7647/ac76f9/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Roadmap on wavefront shaping and deep imaging in complex media</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>The last decade has seen the development of a wide set of tools, such as wavefront shaping, computational or fundamental methods, that allow us to understand and control light propagation in a complex medium, such as biological tissues or multimode fibers. A vibrant and diverse community is now working in this field, which has revolutionized the prospect of diffraction-limited imaging at depth in tissues. This roadmap highlights several key aspects of this fast developing field, and some of the challenges and opportunities ahead.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ac76f9">https://doi.org/10.1088/2515-7647/ac76f9</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad8615" class="art-list-item-title event_main-link">MicroLEDs for optical neuromorphic computing—application potential and present challenges</a> <p class="small art-list-item-meta"> R Kraneis <em>et al</em> 2024 <em>J. Phys. Photonics</em> <b>6</b> 04LT01 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="MicroLEDs for optical neuromorphic computing—application potential and present challenges" data-link-purpose-append-open="MicroLEDs for optical neuromorphic computing—application potential and present challenges">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad8615/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, MicroLEDs for optical neuromorphic computing—application potential and present challenges</span></a> <a href="/article/10.1088/2515-7647/ad8615/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, MicroLEDs for optical neuromorphic computing—application potential and present challenges</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>The slow non-radiative surface recombination velocity of gallium nitride (GaN) in combination with its highly efficient radiative recombination makes this material ideally suited for microLEDs with dimensions as small as 1 <i>µ</i>m and even below, serving as the fundamental building block of micro-displays. However, due to their superior miniaturization potential and energy efficiency, GaN-based microLEDs have applications that extend well beyond display technology. Their capability to produce optical patterns with high resolution, which can be modulated at extremely high frequencies, makes them suitable for numerous other applications. We suggest exploiting these exciting properties for a new and potentially equally significant application: utilizing microLEDs in optical processing units for artificial intelligence workloads. In neuromorphic computing, relevant aspects of biological neural networks are emulated directly with either electronic circuits or photonic devices, avoiding the shortcomings of conventional digital computer technology for AI workloads, which generally require massively parallel information processing. GaN microLEDs are discussed here as a promising enabling technology for optical neuromorphic processing units. We see great potential to substantially decrease power consumption through massively parallel in-memory processing combined with efficient photon production and detection. A theoretical analysis of scalability and energy efficiency is provided. A macroscopic bench-top optical microLED demonstrator is presented, which experimentally proves the feasibility of our approach. Future potential and challenges associated with miniaturizing and scaling microLED-based optical processing units are discussed. Finally, we summarize the open research questions that require attention before fully functional and miniaturized optical neuromorphic processing units based on GaN microLEDs can be realized.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad8615">https://doi.org/10.1088/2515-7647/ad8615</a> </div> </div> </div> </div> </div>  </div> </div> </div>   <div tabindex="0" role="tabpanel" id="latest-articles-tab" aria-labelledby="latest-articles"> <div class=" reveal-container reveal-closed reveal-enabled reveal-container--jnl-tab"> <h2 class="tabpanel__title"> <button type="button" class="reveal-trigger event_tabs-accordion" aria-expanded="false"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg>Latest articles</button> </h2> <div class="reveal-content tabpanel__content" style="display: none"> <p> <button data-reveal-label-alt="Close all abstracts" class="reveal-all-trigger mr-2 small" data-reveal-text="Open all abstracts" data-link-purpose-append="in this tab" data-link-purpose-append-open="in this tab"> Open all abstracts<span class="offscreen-hidden">, in this tab</span> </button> </p>  <div class="art-list"> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad8613" class="art-list-item-title event_main-link">A review of label-free photonics-based techniques for cancer detection in the digestive and urinary systems</a> <p class="small art-list-item-meta"> G Castro-Olvera <em>et al</em> 2025 <em>J. Phys. Photonics</em> <b>7</b> 012002 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="A review of label-free photonics-based techniques for cancer detection in the digestive and urinary systems" data-link-purpose-append-open="A review of label-free photonics-based techniques for cancer detection in the digestive and urinary systems">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad8613/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, A review of label-free photonics-based techniques for cancer detection in the digestive and urinary systems</span></a> <a href="/article/10.1088/2515-7647/ad8613/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, A review of label-free photonics-based techniques for cancer detection in the digestive and urinary systems</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>For a long time, it has been known that optics can provide a broad range of tools for addressing clinical needs, particularly diagnostics. Optical techniques can help in identifying diseases and detecting pathological tissues with non/minimally invasive and label-free methods. Given the current limitations of standard clinical procedures, such an approach could provide a powerful tool in detecting gastrointestinal and bladder cancers. However, each technique has serious limitations regarding one or more of the following features: biomarker sensitivity, penetration depth, acquisition times, or adaptation to the clinical environment. Hence there is an increasing need for approaches and instruments based on the concept of multimodality; in this regard, we review the application of different imaging/spectroscopy tools and methods operating in the first two optical windows (SHG, SPEF, TPEF, THG, 3PEF, CARS, Raman and reflectance) for tumour detection in the digestive and urinary systems. This article also explores the possibility of exploiting the third bio-tissue transmission window (1600–1900 nm) by reviewing state of the art in ultrafast laser sources development. Finally, we summarize the most recent results in developing multiphoton endoscopes—a key element for clinical <i>in vivo</i> translation of photonics-based diagnostics.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad8613">https://doi.org/10.1088/2515-7647/ad8613</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad8d96" class="art-list-item-title event_main-link">Fermion and boson pairs in beamsplitters and Mach–Zehnder interferometers</a> <p class="small art-list-item-meta"> Jonte R Hance 2025 <em>J. Phys. Photonics</em> <b>7</b> 012001 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Fermion and boson pairs in beamsplitters and Mach–Zehnder interferometers" data-link-purpose-append-open="Fermion and boson pairs in beamsplitters and Mach–Zehnder interferometers">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad8d96/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Fermion and boson pairs in beamsplitters and Mach–Zehnder interferometers</span></a> <a href="/article/10.1088/2515-7647/ad8d96/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Fermion and boson pairs in beamsplitters and Mach–Zehnder interferometers</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>In this short topical review, we look at something typically considered trivial, but not given formally elsewhere—the behaviour of first multiple fermions, then multiple bosons, in a beamsplitter. Extending from this, we then describe the behaviour of multiple fermions and multiple bosons in Mach–Zehnder interferometers. We hope that by showing how to go from mathematically simple but unintuitive quantum field theory to a phenomenological description, this review will help both researchers and students build a stronger intuition for the behaviour of quantum particles.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad8d96">https://doi.org/10.1088/2515-7647/ad8d96</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad8d97" class="art-list-item-title event_main-link">1 GHz fundamental repetition rate thulium-doped all-polarization maintaining modelocked fiber laser</a> <p class="small art-list-item-meta"> C Cuadrado-Laborde <em>et al</em> 2025 <em>J. Phys. Photonics</em> <b>7</b> 015001 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="1 GHz fundamental repetition rate thulium-doped all-polarization maintaining modelocked fiber laser" data-link-purpose-append-open="1 GHz fundamental repetition rate thulium-doped all-polarization maintaining modelocked fiber laser">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad8d97/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, 1 GHz fundamental repetition rate thulium-doped all-polarization maintaining modelocked fiber laser</span></a> <a href="/article/10.1088/2515-7647/ad8d97/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, 1 GHz fundamental repetition rate thulium-doped all-polarization maintaining modelocked fiber laser</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>In this work, we present a passively modelocked all-fiber laser that fully retains polarization with a fundamental repetition rate of 1 GHz. The whole cavity consists of a 106 mm-long highly-Tm-doped polarization-maintaining fiber with a dichroic mirror on one end and a semiconductor saturable absorber mirror on the other. We experimentally characterized the output of this laser, which emits a train of transform-limited light pulses with a temporal width of 520 fs at the central optical wavelength of 1.96 <i>μ</i>m. The high stability of this laser was also experimentally verified. Together with this, a detailed theoretical model was developed, confirming the experimental results.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad8d97">https://doi.org/10.1088/2515-7647/ad8d97</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad9209" class="art-list-item-title event_main-link">Unlocking mode programming with multi-plane light conversion using computer-generated hologram optimisation</a> <p class="small art-list-item-meta"> Stefan Rothe <em>et al</em> 2025 <em>J. Phys. Photonics</em> <b>7</b> 015002 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Unlocking mode programming with multi-plane light conversion using computer-generated hologram optimisation" data-link-purpose-append-open="Unlocking mode programming with multi-plane light conversion using computer-generated hologram optimisation">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad9209/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Unlocking mode programming with multi-plane light conversion using computer-generated hologram optimisation</span></a> <a href="/article/10.1088/2515-7647/ad9209/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Unlocking mode programming with multi-plane light conversion using computer-generated hologram optimisation</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>Programmable optical devices provide performance enhancement and flexibility to spatial multiplexing systems enabling transmission of tributaries in high-order eigenmodes of spatially-diverse transmission media, like multimode fibre (MMF). Wavefront shaping with spatial light modulators (SLMs) facilitates scalability of the transmission media by allowing for channel diagonalization and quasi-single-input single-output operation. Programmable mode multiplexing configurations like multi-plane light conversion (MPLC) utilise the SLM and offer the potential to simultaneously launch an arbitrary subset of spatial tributaries in any <i>N</i>-mode MMF. Such programmable optical processor would enable the throughput of space-division multiplexing systems to be progressively increased by addressing a growing number of tributaries over one MMF and in this way meet a growing traffic demand—similarly to the wavelength-division multiplexing evolution path. Conventionally, MPLC phasemasks are calculated using the wavefront matching algorithm (WMA). However, this method does not exploit the full potential of programmable mode multiplexers. We show, that computer-generated hologram algorithms like direct search enable significant improvement compared to the traditional WMA-approach. Such gains are enabled by tailored cost functions with dynamic constraints concerning insertion loss as well as mode extinction ratio. We show that average mode extinction ratio can be greatly improved by as much as <span xmlns:xlink="http://www.w3.org/1999/xlink" class="inline-eqn"><span class="tex"><span class="texImage"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=" data-src="https://content.cld.iop.org/journals/2515-7647/7/1/015002/revision2/jpphotonad9209ieqn1.gif" style="max-width: 100%;" alt="${\approx} 15\,\textrm{dB}$" align="top"></img></span><script type="math/tex">{\approx} 15\,\textrm{dB}</script></span></span> at the expense of insertion loss deterioration of less than <span xmlns:xlink="http://www.w3.org/1999/xlink" class="inline-eqn"><span class="tex"><span class="texImage"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=" data-src="https://content.cld.iop.org/journals/2515-7647/7/1/015002/revision2/jpphotonad9209ieqn2.gif" style="max-width: 100%;" alt="$3\,\textrm{dB}$" align="top"></img></span><script type="math/tex">3\,\textrm{dB}</script></span></span>. One particular feature of programmable mode multiplexers is the adaptability to optimised transmission functions. Besides conventional linearly polarized modes transmission, we employ our approach on Schmidt modes, which are spatial eigenchannels with minimum crosstalk derived from a measured transmission matrix.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad9209">https://doi.org/10.1088/2515-7647/ad9209</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad8b05" class="art-list-item-title event_main-link">Talbot laser for Airy pulse generation</a> <p class="small art-list-item-meta"> M Cuenca <em>et al</em> 2024 <em>J. Phys. Photonics</em> <b>6</b> 045026 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Talbot laser for Airy pulse generation" data-link-purpose-append-open="Talbot laser for Airy pulse generation">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad8b05/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Talbot laser for Airy pulse generation</span></a> <a href="/article/10.1088/2515-7647/ad8b05/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Talbot laser for Airy pulse generation</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>We report a C-band fiber Talbot laser—an injection-seeded frequency-shifting active ring cavity operated above threshold—emitting trains of far-field Airy pulses characterized by a dominant cubic spectral phase. Pulses are created by the coherent addition of the recirculating seed wavelength under a large roundtrip first-order dispersion. Single-sided Airy pulse trains with sub-ns pulse widths, 80 MHz repetition rate, and bandwidth exceeding 10 GHz are generated at both integer and fractional Talbot conditions. At detuned Talbot conditions pulses are shown to be tailorable by recirculation-induced first-order dispersion. The far-field character of the resulting waveforms is demonstrated, and the performance in terms of amplitude noise and timing jitter, in this last case after the introduction of active loop stabilization, is evaluated.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad8b05">https://doi.org/10.1088/2515-7647/ad8b05</a> </div> </div> </div> </div> </div>  </div> </div> </div>     <div tabindex="0" role="tabpanel" id="review-articles-tab" aria-labelledby="review-articles" hidden="hidden"> <div class=" reveal-container reveal-closed reveal-enabled reveal-container--jnl-tab"> <h2 class="tabpanel__title"> <button type="button" class="reveal-trigger event_tabs-accordion" aria-expanded="false"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg>Review articles</button> </h2> <div class="reveal-content tabpanel__content" style="display: none"> <p> <button data-reveal-label-alt="Close all abstracts" class="reveal-all-trigger mr-2 small" data-reveal-text="Open all abstracts" data-link-purpose-append="in this tab" data-link-purpose-append-open="in this tab"> Open all abstracts<span class="offscreen-hidden">, in this tab</span> </button> </p>  <div class="art-list"> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad8613" class="art-list-item-title event_main-link">A review of label-free photonics-based techniques for cancer detection in the digestive and urinary systems</a> <p class="small art-list-item-meta"> G Castro-Olvera <em>et al</em> 2025 <em>J. Phys. Photonics</em> <b>7</b> 012002 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="A review of label-free photonics-based techniques for cancer detection in the digestive and urinary systems" data-link-purpose-append-open="A review of label-free photonics-based techniques for cancer detection in the digestive and urinary systems">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad8613/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, A review of label-free photonics-based techniques for cancer detection in the digestive and urinary systems</span></a> <a href="/article/10.1088/2515-7647/ad8613/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, A review of label-free photonics-based techniques for cancer detection in the digestive and urinary systems</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>For a long time, it has been known that optics can provide a broad range of tools for addressing clinical needs, particularly diagnostics. Optical techniques can help in identifying diseases and detecting pathological tissues with non/minimally invasive and label-free methods. Given the current limitations of standard clinical procedures, such an approach could provide a powerful tool in detecting gastrointestinal and bladder cancers. However, each technique has serious limitations regarding one or more of the following features: biomarker sensitivity, penetration depth, acquisition times, or adaptation to the clinical environment. Hence there is an increasing need for approaches and instruments based on the concept of multimodality; in this regard, we review the application of different imaging/spectroscopy tools and methods operating in the first two optical windows (SHG, SPEF, TPEF, THG, 3PEF, CARS, Raman and reflectance) for tumour detection in the digestive and urinary systems. This article also explores the possibility of exploiting the third bio-tissue transmission window (1600–1900 nm) by reviewing state of the art in ultrafast laser sources development. Finally, we summarize the most recent results in developing multiphoton endoscopes—a key element for clinical <i>in vivo</i> translation of photonics-based diagnostics.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad8613">https://doi.org/10.1088/2515-7647/ad8613</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad8d96" class="art-list-item-title event_main-link">Fermion and boson pairs in beamsplitters and Mach–Zehnder interferometers</a> <p class="small art-list-item-meta"> Jonte R Hance 2025 <em>J. Phys. Photonics</em> <b>7</b> 012001 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Fermion and boson pairs in beamsplitters and Mach–Zehnder interferometers" data-link-purpose-append-open="Fermion and boson pairs in beamsplitters and Mach–Zehnder interferometers">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad8d96/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Fermion and boson pairs in beamsplitters and Mach–Zehnder interferometers</span></a> <a href="/article/10.1088/2515-7647/ad8d96/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Fermion and boson pairs in beamsplitters and Mach–Zehnder interferometers</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>In this short topical review, we look at something typically considered trivial, but not given formally elsewhere—the behaviour of first multiple fermions, then multiple bosons, in a beamsplitter. Extending from this, we then describe the behaviour of multiple fermions and multiple bosons in Mach–Zehnder interferometers. We hope that by showing how to go from mathematically simple but unintuitive quantum field theory to a phenomenological description, this review will help both researchers and students build a stronger intuition for the behaviour of quantum particles.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad8d96">https://doi.org/10.1088/2515-7647/ad8d96</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad82c1" class="art-list-item-title event_main-link">Optical wavefront shaping in deep tissue using photoacoustic feedback</a> <p class="small art-list-item-meta"> Fei Xia <em>et al</em> 2024 <em>J. Phys. Photonics</em> <b>6</b> 043005 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Optical wavefront shaping in deep tissue using photoacoustic feedback" data-link-purpose-append-open="Optical wavefront shaping in deep tissue using photoacoustic feedback">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad82c1/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Optical wavefront shaping in deep tissue using photoacoustic feedback</span></a> <a href="/article/10.1088/2515-7647/ad82c1/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Optical wavefront shaping in deep tissue using photoacoustic feedback</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>Over the past decade, optical wavefront shaping has been developed to focus light through highly opaque scattering layers, opening new possibilities for biomedical applications. To probe light intensity deep <i>inside</i> soft scattering media such as biological tissues, internal guide-stars are required. Here, we give an overview of the main principles and describe in depth the use of a photoacoustic feedback signal for this purpose. We further present first principles calculations and simulations to estimate important experimental parameters, and detailed instructions on designing and conducting these experiments. Finally, we provide guidance towards selecting suitable equipment for building a typical experimental setup, paving the way for further innovative biomedical imaging and therapy applications.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad82c1">https://doi.org/10.1088/2515-7647/ad82c1</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad7e8c" class="art-list-item-title event_main-link">The compact cookbook of structured modes of light</a> <p class="small art-list-item-meta"> Carmelo Rosales-Guzmán <em>et al</em> 2024 <em>J. Phys. Photonics</em> <b>6</b> 043004 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="The compact cookbook of structured modes of light" data-link-purpose-append-open="The compact cookbook of structured modes of light">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad7e8c/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, The compact cookbook of structured modes of light</span></a> <a href="/article/10.1088/2515-7647/ad7e8c/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, The compact cookbook of structured modes of light</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>This concise tutorial serves as a guide to the generation and characterisation of higher-order optical mode bases, such as HG, LG, OAM, IG, MG, BG, and various vector modes. It succinctly outlines the creation methods and practicalities for these structured light forms using liquid crystal spatial light modulators and digital micro-mirror devices. An overview of measurement and characterisation using modal decomposition, and approaches to measure and characterise vector beams is also given (Stokes polarimetry and vector quality factor). The tutorial concludes with a brief discussion on the effects of varying coherence on these complex light structures, providing essential insights for anyone starting out in the field of photonics.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad7e8c">https://doi.org/10.1088/2515-7647/ad7e8c</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad7cb1" class="art-list-item-title event_main-link">Imaging through scattering media by exploiting the optical memory effect: a tutorial</a> <p class="small art-list-item-meta"> H Penketh and J Bertolotti 2024 <em>J. Phys. Photonics</em> <b>6</b> 043003 </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Imaging through scattering media by exploiting the optical memory effect: a tutorial" data-link-purpose-append-open="Imaging through scattering media by exploiting the optical memory effect: a tutorial">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad7cb1/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View article<span class="offscreen-hidden">, Imaging through scattering media by exploiting the optical memory effect: a tutorial</span></a> <a href="/article/10.1088/2515-7647/ad7cb1/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Imaging through scattering media by exploiting the optical memory effect: a tutorial</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"><p>Scattering, especially multiple scattering, is a well known problem in imaging, ranging from astronomy to medicine. In particular it is often desirable to be able to perform non-invasive imaging through turbid and/or opaque media. Many different approaches have been proposed and tested through the years, each with their own advantages, disadvantages, and specific situations in which they work. In this tutorial we will show how knowledge of the correlations arising from the multiple scattering of light allows for non-invasive imaging through a strongly scattering layer, with particular attention on the practicalities of how to make such an experiment work.</p></div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad7cb1">https://doi.org/10.1088/2515-7647/ad7cb1</a> </div> </div> </div> </div> </div>  </div> </div> </div>       <div tabindex="0" role="tabpanel" id="accepted-manuscripts-tab" aria-labelledby="accepted-manuscripts" hidden="hidden"> <div class="reveal-container reveal-closed reveal-enabled reveal-container--jnl-tab"> <h2 class="tabpanel__title"> <button type="button" class="reveal-trigger event_tabs-accordion" aria-expanded="false"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg>Accepted manuscripts</button> </h2> <div class="reveal-content tabpanel__content" style="display: none;">  <p id="jnl-issue-disp-links" class="cf"> <button data-reveal-label-alt="Close all abstracts" class="reveal-all-trigger mr-2 small" data-reveal-text="Open all abstracts" data-link-purpose-append="in this tab" data-link-purpose-append-open="in this tab">Open all abstracts<span class="offscreen-hidden">, in this tab</span></button> </p>  <div class="art-list" id="wd-jnl-issue-art-list"> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad95cf" class="art-list-item-title event_main-link">Near-infrared transparent conductive electrodes based on composite GaAs-metal deep sub-wavelength high contrast grating</a> <p class="small art-list-item-meta"> Monvoisin et al  </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Near-infrared transparent conductive electrodes based on composite GaAs-metal deep sub-wavelength high contrast grating" data-link-purpose-append-open="Near-infrared transparent conductive electrodes based on composite GaAs-metal deep sub-wavelength high contrast grating">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad95cf/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View accepted manuscript<span class="offscreen-hidden">, Near-infrared transparent conductive electrodes based on composite GaAs-metal deep sub-wavelength high contrast grating</span></a> <a href="/article/10.1088/2515-7647/ad95cf/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Near-infrared transparent conductive electrodes based on composite GaAs-metal deep sub-wavelength high contrast grating</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"> <p>This paper demonstrates the fabrication of near-infrared transparent electrodes customized for specific light polarization. We achieve this by employing semiconductor deep subwavelength monolithic high-contrast gratings (MHCG) integrating metal stripes. Through the combination of GaAs-based MHCG with TiAu or Au stripes within a deep sub-wavelength grating, polarization selective transmission exceeding 80\% over a wide spectral range is achieved for structures designed to operate around a wavelength of 940\,nm for either TE or TM excitation. &#xD;At maximum 85\% transmission is reached which relates to 122\% transmission with respect to the transmission through plain GaAs-air interface.&#xD;Additionally, these structures exhibit low sheet resistance (1.4 $\Omega/sq$). &#xD;Hybrid metal-stripes/MHCG grating (mMHCG) enables record-breaking polarized light transmission and electrical conductivity simultaneously. Our work represents the first demonstration of mMHCG in the near-infrared range, showing optical and electrical properties not seen in alternative transparent conductive electrode designs.&#xD;The proposed approach has the potential to enhance electrical injection uniformity in optoelectronic devices such as LEDs, semiconductor lasers and photodetectors.</p> </div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad95cf">https://doi.org/10.1088/2515-7647/ad95cf</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad936a" class="art-list-item-title event_main-link">Lithographically-defined cavities with high quality and purcell factors</a> <p class="small art-list-item-meta"> Sultani Vala et al  </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Lithographically-defined cavities with high quality and purcell factors" data-link-purpose-append-open="Lithographically-defined cavities with high quality and purcell factors">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad936a/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View accepted manuscript<span class="offscreen-hidden">, Lithographically-defined cavities with high quality and purcell factors</span></a> <a href="/article/10.1088/2515-7647/ad936a/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Lithographically-defined cavities with high quality and purcell factors</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"> <p>We introduce and analyze a lithographically defined cavity (Li-cavity) incorporating a buried mesa defect in a planar vertical structure, which induces transverse photonic confinement while enabling compatibility with electrical injection. We systematically investigate the influence of key cavity parameters on optical behavior and fundamental properties using a comprehensive three-dimensional optical model. Our analysis reveals that the Li-cavity exhibits low optical scattering, resulting in high Q and Purcell factors, even at sub-wavelength dimensions. Furthermore, the Li-cavity supports single-mode operation within a broader aperture size range compared to conventional cavity designs, promising enhanced optical power of single-mode emission. Adequately designed structures demonstrate superior Q and Purcell factors at wavelength scale sizes,- outperforming conventional micropillar cavities. These improved properties and customizable device characteristics stem from a simple fabrication process that precisely controls the cavity size, shape, and optical mode. Superior characteristics, along with its adaptability to diverse materials, wavelengths, and photonic integration platforms, promise a broad range of applications and potential adaptation of this design to diverse photonic devices.&#xD;</p> </div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad936a">https://doi.org/10.1088/2515-7647/ad936a</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad936b" class="art-list-item-title event_main-link">Multispectral multiplexed confocal FLIM for live cell imaging</a> <p class="small art-list-item-meta"> Richards et al  </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Multispectral multiplexed confocal FLIM for live cell imaging" data-link-purpose-append-open="Multispectral multiplexed confocal FLIM for live cell imaging">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad936b/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View accepted manuscript<span class="offscreen-hidden">, Multispectral multiplexed confocal FLIM for live cell imaging</span></a> <a href="/article/10.1088/2515-7647/ad936b/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Multispectral multiplexed confocal FLIM for live cell imaging</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"> <p>Spectrally resolved fluorescence lifetime imaging with high spatial precision offers comprehensive information on species localization and behavior. It is challenging to resolve weak fluorescence signals in multiple dimensions (spatial, spectral, and temporal) at high frame rates, especially in dynamic live cell processes, as photobleaching and phototoxicity limit acceptable photon count rates. We developed a multiplexed confocal FLIM technique, which uses a prism-based imaging spectrometer to separate a 10x10 array of confocal foci into their spectral components. This allows the sampling of the spectra by a time-resolved image sensor to produce a multispectral time-resolved data set used for generating multispectral lifetime images. This system captures 300x300 pixel fluorescence lifetime images containing 12 unique spectral bands covering a 450-700 nm spectral range in 1.8 seconds of exposure. Its performance was demonstrated in fixed stained samples and in multispectral imaging of FLIM-FRET in live cells.&#xD;</p> </div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad936b">https://doi.org/10.1088/2515-7647/ad936b</a> </div> </div> </div> </div> <div class="art-list-item reveal-container reveal-closed"> <div class="art-list-item-body"> <div class="eyebrow"> <span class="offscreen-hidden">The following article is </span><span class="red">Open access</span> </div> <a href="/article/10.1088/2515-7647/ad6b19" class="art-list-item-title event_main-link">Roadmap on specialty optical fibers</a> <p class="small art-list-item-meta"> Ferreira et al  </p> <div class="art-list-item-tools small wd-abstr-upper"> <button type="button" class="reveal-trigger mr-2 nowrap"> <svg aria-hidden="true" class="fa-icon fa-icon--left fa-icon--flip" role="img" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path d="M137.4 374.6c12.5 12.5 32.8 12.5 45.3 0l128-128c9.2-9.2 11.9-22.9 6.9-34.9s-16.6-19.8-29.6-19.8L32 192c-12.9 0-24.6 7.8-29.6 19.8s-2.2 25.7 6.9 34.9l128 128z"/></svg><span class="reveal-trigger-label" data-reveal-text="Open abstract" data-reveal-label-alt="Close abstract" data-link-purpose-append="Roadmap on specialty optical fibers" data-link-purpose-append-open="Roadmap on specialty optical fibers">Open abstract</span> </button> <a href="/article/10.1088/2515-7647/ad6b19/meta" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="View article"> <span class="icon-article"></span>View accepted manuscript<span class="offscreen-hidden">, Roadmap on specialty optical fibers</span></a> <a href="/article/10.1088/2515-7647/ad6b19/pdf" class="mr-2 mb-0 nowrap event_mini-link" data-event-action="PDF"><span class="icon-file-pdf"></span>PDF<span class="offscreen-hidden">, Roadmap on specialty optical fibers</span></a> </div> <div class="reveal-content"> <div class="article-text view-text-small"> <p>Optical fibers, long an enabling technology for telecommunications, are proving to play a central role in a growing number of modern applications, starting from high speed broad band internet to medical surgery and entering across the entire spectrum of scientific, military, industrial and commercial applications. Specialty optical fibers either special waveguide structure or novel material composition becomes heart of all fiber based advanced photonics devices and components. This rapidly evolving field calls on the expertise and skills of a broad set of different disciplines: materials science, ceramic engineering, optics, electrical engineering, physics, polymer chemistry, and several others. This roadmap on specialty optical fibers addresses different technologies and application areas. It is constituted by fourteen contributions authored by world-leading experts, providing insight into the current state-of-the-art and the challenges their respective fields face. Some articles address the area of multimode fibers, including the nonlinear effects occurring in them. Several other articles are dedicated to doped, plastic, and soft-glass fibers. Large mode area fibers, hollow-core fibers, and nanostructured fibers are also described in different sections. The use of some of such fibers for optical amplification and to realize several kinds of optical sources - including lasers, single photon sources and supercontinuum sources - is described in some other sections. Different approaches to satisfy applications at visible, infrared and THz spectra regions are also discussed. Throughout the roadmap there is an attempt to foresee and to suggest future directions in this particularly dynamic area of optical fiber technology.&#xD;</p> </div> <div class="art-list-item-tools small wd-abstr-lower"> <a class="mr-2" href="https://doi.org/10.1088/2515-7647/ad6b19">https://doi.org/10.1088/2515-7647/ad6b19</a> </div> </div> </div> </div> </div>   </div> </div> </div>        </div>    <aside aria-label="Main column advert"> <div id='div-gpt-ad-1562594774007-0' style='width: 728px; height: 90px; display: block;'> <script> googletag.cmd.push(function () { googletag.display('div-gpt-ad-1562594774007-0'); }); </script> </div> </aside>   </div>  </div> </main> <div class="db2 tb2"> <div class="side-and-below">  <div class="sidebar-list" id="wd-jnl-links"> <h2 class="sidebar-list__heading">Journal links</h2> <ul class="sidebar-list__list"><li><a href="/2515-7647/page/submission-options"><b>Submit an article</b></a></li> <li><a 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