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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2308.10674">arXiv:2308.10674</a> <span> [<a href="https://arxiv.org/pdf/2308.10674">pdf</a>, <a href="https://arxiv.org/format/2308.10674">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1093/mam/ozae004">10.1093/mam/ozae004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Live Iterative Ptychography </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Weber%2C+D">Dieter Weber</a>, <a href="/search/physics?searchtype=author&query=Ehrig%2C+S">Simeon Ehrig</a>, <a href="/search/physics?searchtype=author&query=Schropp%2C+A">Andreas Schropp</a>, <a href="/search/physics?searchtype=author&query=Clausen%2C+A">Alexander Clausen</a>, <a href="/search/physics?searchtype=author&query=Achilles%2C+S">Silvio Achilles</a>, <a href="/search/physics?searchtype=author&query=Hoffmann%2C+N">Nico Hoffmann</a>, <a href="/search/physics?searchtype=author&query=Bussmann%2C+M">Michael Bussmann</a>, <a href="/search/physics?searchtype=author&query=Dunin-Borkowski%2C+R">Rafal Dunin-Borkowski</a>, <a href="/search/physics?searchtype=author&query=Schroer%2C+C+G">Christian G. Schroer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2308.10674v3-abstract-short" style="display: inline;"> We demonstrate live-updating ptychographic reconstruction with ePIE, an iterative ptychography method, during ongoing data acquisition. The reconstruction starts with a small subset of the total data, and as the acquisition proceeds the data used for reconstruction is extended. This creates a live-updating view of object and illumination that allows monitoring the ongoing experiment and adjusting… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.10674v3-abstract-full').style.display = 'inline'; document.getElementById('2308.10674v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2308.10674v3-abstract-full" style="display: none;"> We demonstrate live-updating ptychographic reconstruction with ePIE, an iterative ptychography method, during ongoing data acquisition. The reconstruction starts with a small subset of the total data, and as the acquisition proceeds the data used for reconstruction is extended. This creates a live-updating view of object and illumination that allows monitoring the ongoing experiment and adjusting parameters with quick turn-around. This is particularly advantageous for long-running acquisitions. We show that such a gradual reconstruction yields interpretable results already with a small subset of the data. We show simulated live processing with various scan patterns, parallelized reconstruction, and real-world live processing at the hard X-ray ptychographic nanoanalytical microscope PtyNAMi at the PETRA III beamline. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.10674v3-abstract-full').style.display = 'none'; document.getElementById('2308.10674v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1812.05897">arXiv:1812.05897</a> <span> [<a href="https://arxiv.org/pdf/1812.05897">pdf</a>, <a href="https://arxiv.org/format/1812.05897">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1364/OE.27.008639">10.1364/OE.27.008639 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ptychographic characterization of polymer compound refractive lenses manufactured by additive technology </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Lyubomirskiy%2C+M">Mikhail Lyubomirskiy</a>, <a href="/search/physics?searchtype=author&query=Koch%2C+F">Frieder Koch</a>, <a href="/search/physics?searchtype=author&query=Abrashitova%2C+K">Ksenia Abrashitova</a>, <a href="/search/physics?searchtype=author&query=Bessonov%2C+V">Vladimir Bessonov</a>, <a href="/search/physics?searchtype=author&query=Kokareva%2C+N">Natalia Kokareva</a>, <a href="/search/physics?searchtype=author&query=Petrov%2C+A">Alexander Petrov</a>, <a href="/search/physics?searchtype=author&query=Seiboth%2C+F">Frank Seiboth</a>, <a href="/search/physics?searchtype=author&query=Wittwer%2C+F">Felix Wittwer</a>, <a href="/search/physics?searchtype=author&query=Kahnt%2C+M">Maik Kahnt</a>, <a href="/search/physics?searchtype=author&query=Fedyanin%2C+M+S+A">Martin Seyrich Andrey Fedyanin</a>, <a href="/search/physics?searchtype=author&query=David%2C+C">Christian David</a>, <a href="/search/physics?searchtype=author&query=Schroer%2C+C">Christian Schroer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1812.05897v1-abstract-short" style="display: inline;"> The recent success in the development of high precision printing techniques allows one to manufacture free-standing polymer structures of high quality. Two-photon polymerization lithography is a mask-less technique with down to 100 渭m resolution that provides full geometric freedom. It has recently been applied to the nanofabrication of X-ray compound refractive lenses (CRLs). In this article we r… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.05897v1-abstract-full').style.display = 'inline'; document.getElementById('1812.05897v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1812.05897v1-abstract-full" style="display: none;"> The recent success in the development of high precision printing techniques allows one to manufacture free-standing polymer structures of high quality. Two-photon polymerization lithography is a mask-less technique with down to 100 渭m resolution that provides full geometric freedom. It has recently been applied to the nanofabrication of X-ray compound refractive lenses (CRLs). In this article we report on the characterization of two sets of CRLs of different design produced by two-photon polymerization induced lithography. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.05897v1-abstract-full').style.display = 'none'; document.getElementById('1812.05897v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2018. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1811.02081">arXiv:1811.02081</a> <span> [<a href="https://arxiv.org/pdf/1811.02081">pdf</a>, <a href="https://arxiv.org/format/1811.02081">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Image and Video Processing">eess.IV</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Optimization and Control">math.OC</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1364/OE.27.010395">10.1364/OE.27.010395 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Advanced Denoising for X-ray Ptychography </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Chang%2C+H">Huibin Chang</a>, <a href="/search/physics?searchtype=author&query=Enfedaque%2C+P">Pablo Enfedaque</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+J">Jie Zhang</a>, <a href="/search/physics?searchtype=author&query=Reinhardt%2C+J">Juliane Reinhardt</a>, <a href="/search/physics?searchtype=author&query=Enders%2C+B">Bjoern Enders</a>, <a href="/search/physics?searchtype=author&query=Yu%2C+Y">Young-Sang Yu</a>, <a href="/search/physics?searchtype=author&query=Shapiro%2C+D">David Shapiro</a>, <a href="/search/physics?searchtype=author&query=Schroer%2C+C+G">Christian G. Schroer</a>, <a href="/search/physics?searchtype=author&query=Zeng%2C+T">Tieyong Zeng</a>, <a href="/search/physics?searchtype=author&query=Marchesini%2C+S">Stefano Marchesini</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1811.02081v2-abstract-short" style="display: inline;"> The success of ptychographic imaging experiments strongly depends on achieving high signal-to-noise ratio. This is particularly important in nanoscale imaging experiments when diffraction signals are very weak and the experiments are accompanied by significant parasitic scattering (background), outliers or correlated noise sources. It is also critical when rare events such as cosmic rays, or bad f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1811.02081v2-abstract-full').style.display = 'inline'; document.getElementById('1811.02081v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1811.02081v2-abstract-full" style="display: none;"> The success of ptychographic imaging experiments strongly depends on achieving high signal-to-noise ratio. This is particularly important in nanoscale imaging experiments when diffraction signals are very weak and the experiments are accompanied by significant parasitic scattering (background), outliers or correlated noise sources. It is also critical when rare events such as cosmic rays, or bad frames caused by electronic glitches or shutter timing malfunction take place. In this paper, we propose a novel iterative algorithm with rigorous analysis that exploits the direct forward model for parasitic noise and sample smoothness to achieve a thorough characterization and removal of structured and random noise. We present a formal description of the proposed algorithm and prove its convergence under mild conditions. Numerical experiments from simulations and real data (both soft and hard X-ray beamlines) demonstrate that the proposed algorithms produce better results when compared to state-of-the-art methods. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1811.02081v2-abstract-full').style.display = 'none'; document.getElementById('1811.02081v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 November, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">24 pages, 9 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Optics express 27 (8), 10395-10418 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1610.08583">arXiv:1610.08583</a> <span> [<a href="https://arxiv.org/pdf/1610.08583">pdf</a>, <a href="https://arxiv.org/format/1610.08583">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/1.4963906">10.1063/1.4963906 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Phase-Contrast Imaging Instrument at the Matter in Extreme Conditions Endstation at LCLS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Nagler%2C+B">Bob Nagler</a>, <a href="/search/physics?searchtype=author&query=Schropp%2C+A">Andreas Schropp</a>, <a href="/search/physics?searchtype=author&query=Galtier%2C+E+C">Eric C. Galtier</a>, <a href="/search/physics?searchtype=author&query=Arnold%2C+B">Brice Arnold</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+S+B">Shaughnessy B. Brown</a>, <a href="/search/physics?searchtype=author&query=Fry%2C+A">Alan Fry</a>, <a href="/search/physics?searchtype=author&query=Gleason%2C+A">Arianna Gleason</a>, <a href="/search/physics?searchtype=author&query=Granados%2C+E">Eduardo Granados</a>, <a href="/search/physics?searchtype=author&query=Hashim%2C+A">Akel Hashim</a>, <a href="/search/physics?searchtype=author&query=Hastings%2C+J+B">Jerome B. Hastings</a>, <a href="/search/physics?searchtype=author&query=Samberg%2C+D">Dirk Samberg</a>, <a href="/search/physics?searchtype=author&query=Seiboth%2C+F">Frank Seiboth</a>, <a href="/search/physics?searchtype=author&query=Tavella%2C+F">Franz Tavella</a>, <a href="/search/physics?searchtype=author&query=Xing%2C+Z">Zhou Xing</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+H+J">Hae Ja Lee</a>, <a href="/search/physics?searchtype=author&query=Schroer%2C+C+G">Christian G. Schroer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1610.08583v1-abstract-short" style="display: inline;"> We describe the Phase-Contrast Imaging instrument at the Matter in Extreme Conditions (MEC) endstation of the Linac Coherent Light Source. The instrument can image phenomena with a spatial resolution of a few hundreds of nanometers and at the same time reveal the atomic structure through X-ray diffraction, with a temporal resolution better than 100 femtosecond. It was specifically designed for stu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1610.08583v1-abstract-full').style.display = 'inline'; document.getElementById('1610.08583v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1610.08583v1-abstract-full" style="display: none;"> We describe the Phase-Contrast Imaging instrument at the Matter in Extreme Conditions (MEC) endstation of the Linac Coherent Light Source. The instrument can image phenomena with a spatial resolution of a few hundreds of nanometers and at the same time reveal the atomic structure through X-ray diffraction, with a temporal resolution better than 100 femtosecond. It was specifically designed for studies relevant to High-Energy-Density Science and can monitor, e.g., shock fronts, phase transitions, or void collapses. This versatile instrument was commissioned last year and is now available to the MEC user community. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1610.08583v1-abstract-full').style.display = 'none'; document.getElementById('1610.08583v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 October, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Rev. Sci. Instrum. 87, 103701 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1511.05828">arXiv:1511.05828</a> <span> [<a href="https://arxiv.org/pdf/1511.05828">pdf</a>, <a href="https://arxiv.org/ps/1511.05828">ps</a>, <a href="https://arxiv.org/format/1511.05828">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Statistical Mechanics">cond-mat.stat-mech</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/1.4937154">10.1063/1.4937154 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Understanding the Nonlinear Dynamics of Driven Particles in Supercooled Liquids in Terms of an Effective Temperature </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Schroer%2C+C+F+E">Carsten F. E. Schroer</a>, <a href="/search/physics?searchtype=author&query=Heuer%2C+A">Andreas Heuer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1511.05828v2-abstract-short" style="display: inline;"> In active microrheology the mechanical properties of a material are tested by adding probe particles which are pulled by an external force. In case of supercooled liquids, strong forcing leads to a thinning of the host material which becomes more pronounced as the system approaches the glass transition. In this work we provide a quantitative theoretical description of this thinning behavior based… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1511.05828v2-abstract-full').style.display = 'inline'; document.getElementById('1511.05828v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1511.05828v2-abstract-full" style="display: none;"> In active microrheology the mechanical properties of a material are tested by adding probe particles which are pulled by an external force. In case of supercooled liquids, strong forcing leads to a thinning of the host material which becomes more pronounced as the system approaches the glass transition. In this work we provide a quantitative theoretical description of this thinning behavior based on the properties of the Potential Energy Landscape (PEL) of a model glass-former. A key role plays the trap-like nature of the PEL. We find that the mechanical properties in the strongly driven system behave the same as in a quiescent system at an enhanced temperature, giving rise to a well-characterized effective temperature. Furthermore, this effective temperature turns out to be independent of the chosen observable and individually shows up in the thermodynamic and dynamic properties of the system. Based on this underlying theoretical understanding, we can estimate its dependence on temperature and force by the PEL-properties of the quiescent system. We furthermore critically discuss the relevance of effective temperatures obtained by scaling relations for the description of out-of-equilibrium situations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1511.05828v2-abstract-full').style.display = 'none'; document.getElementById('1511.05828v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 November, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 November, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1311.1374">arXiv:1311.1374</a> <span> [<a href="https://arxiv.org/pdf/1311.1374">pdf</a>, <a href="https://arxiv.org/format/1311.1374">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/499/1/012020">10.1088/1742-6596/499/1/012020 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ptychography imaging of the phase vortices in the x-ray beam formed by nanofocusing lenses </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Dzhigaev%2C+D">D. Dzhigaev</a>, <a href="/search/physics?searchtype=author&query=Lorenz%2C+U">U. Lorenz</a>, <a href="/search/physics?searchtype=author&query=Kurta%2C+R">R. Kurta</a>, <a href="/search/physics?searchtype=author&query=Seiboth%2C+F">F. Seiboth</a>, <a href="/search/physics?searchtype=author&query=Stankevic%2C+T">T. Stankevic</a>, <a href="/search/physics?searchtype=author&query=Mickevicius%2C+S">S. Mickevicius</a>, <a href="/search/physics?searchtype=author&query=Singer%2C+A">A. Singer</a>, <a href="/search/physics?searchtype=author&query=Shabalin%2C+A">A. Shabalin</a>, <a href="/search/physics?searchtype=author&query=Yefanov%2C+O">O. Yefanov</a>, <a href="/search/physics?searchtype=author&query=Strikhanov%2C+M+N">M. N. Strikhanov</a>, <a href="/search/physics?searchtype=author&query=Falkenberg%2C+G">G. Falkenberg</a>, <a href="/search/physics?searchtype=author&query=Schroer%2C+C+G">C. G. Schroer</a>, <a href="/search/physics?searchtype=author&query=Feidenhans%60l%2C+R">R. Feidenhans`l</a>, <a href="/search/physics?searchtype=author&query=Vartanyants%2C+I+A">I. A. Vartanyants</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1311.1374v1-abstract-short" style="display: inline;"> We present the ptychography reconstruction of the x-ray beam formed by nanofocusing lenses (NFLs) containing a number of phase singularities (vortices) in the vicinity of the focal plane. As a test object Siemens star pattern was used with the finest features of 50 nm for ptychography measurements. The extended ptychography iterative engine (ePIE) algorithm was applied to retrieve both complex ill… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.1374v1-abstract-full').style.display = 'inline'; document.getElementById('1311.1374v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1311.1374v1-abstract-full" style="display: none;"> We present the ptychography reconstruction of the x-ray beam formed by nanofocusing lenses (NFLs) containing a number of phase singularities (vortices) in the vicinity of the focal plane. As a test object Siemens star pattern was used with the finest features of 50 nm for ptychography measurements. The extended ptychography iterative engine (ePIE) algorithm was applied to retrieve both complex illumination and object functions from the set of diffraction patterns. The reconstruction revealed the focus size of 91.4$\pm$1.1 nm in horizontal and 70$\pm$0.3 nm in vertical direction at full width at half maximum (FWHM). The complex probe function was propagated along the optical axis of the beam revealing the evolution of the phase singularities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.1374v1-abstract-full').style.display = 'none'; document.getElementById('1311.1374v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 November, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 3 figures, Proceedings of ICXOM22 Conference, 2-6 September 2013, Hamburg, Germany</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Phys.: Conf. Series 499 012020 (2014) </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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