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<div class="search-expand-inner"><form role="search" method="get" class="search-form" action="https://www.optomechanics.nl/"> <label> <span class="screen-reader-text">Search for:</span> <input type="search" class="search-field" placeholder="Search …" value="" name="s" /> </label> <input type="submit" class="search-submit" value="Search" /> </form></div> </div> </div> </div> </nav> <div class="container group"> <div class="container-inner"> <div id="header-image-wrap"> <div class="group hu-pad central-header-zone"> <div class="logo-tagline-group"> <h1 class="site-title"> <a class="custom-logo-link" href="https://www.optomechanics.nl/" rel="home" title="Photonic Forces | Home page">Photonic Forces</a> </h1> <p class="site-description">Research group of Ewold Verhagen</p> </div> </div> <a href="https://www.optomechanics.nl/" rel="home"><img src="https://www.optomechanics.nl/wp-content/uploads/2021/02/cropped-2_crop.jpg" width="1500" height="304" alt="" class="new-site-image" srcset="https://www.optomechanics.nl/wp-content/uploads/2021/02/cropped-2_crop.jpg 1500w, https://www.optomechanics.nl/wp-content/uploads/2021/02/cropped-2_crop-300x61.jpg 300w, https://www.optomechanics.nl/wp-content/uploads/2021/02/cropped-2_crop-1024x208.jpg 1024w, https://www.optomechanics.nl/wp-content/uploads/2021/02/cropped-2_crop-768x156.jpg 768w" sizes="(max-width: 1500px) 100vw, 1500px" decoding="async" fetchpriority="high" /></a> </div> </div> </div> </header> <div class="container" id="page"> <div class="container-inner"> <div class="main"> <div class="main-inner group"> <main class="content" id="content"> <div class="page-title hu-pad group"> <h1>About the group</h1> </div> <div class="hu-pad group"> <article class="group post-9 page type-page status-publish hentry"> <div class="entry themeform"> <p class="block__heading" style="text-align: justify;">The <em>Photonic Forces</em> group, led by Ewold Verhagen, a research group at the <a href="http://www.amolf.nl">AMOLF</a> institute in Amsterdam, The Netherlands. It is part of the<em> Information in Matter</em> department and the <em>Nanophotonics</em> center at AMOLF.</p> <p class="block__heading" style="text-align: justify;">We study light-matter interactions at the nanoscale, in particular the coupling between photons and phonons in nano-optomechanical systems. We seek to understand how the behavior of light and sound in nanoscale devices is governed by fundamental principles such as spatiotemporal symmetries and quantum mechanics. We explore how suitable system design and control over light-matter interactions can engage the conventional limits to nanophotonic and nanomechanical functionality, in application domains from sensing and metrology to communication.</p> <h3 class="block__heading">Research themes</h3> <p>We are currently working on the following topics:</p> <ul> <li> <h5><strong><a href="https://www.optomechanics.nl/research/">Quantum metrology</a></strong></h5> <ul> <li>Can we probe and evade the quantum limits to displacement sensing?</li> <li>Can we control and characterize the quantum state of macroscopic mechanical objects?</li> <li>Can we use quantum mechanics to gain advantages in new sensor technology?</li> </ul> </li> </ul> <ul> <li> <h5><a href="https://www.optomechanics.nl/research/"><strong>Topological photons and phonons</strong></a></h5> <ul> <li>Can we realize topological protection of photons and phonons at the nanoscale, and put it to use?</li> <li>What new bosonic states and transport phenomena emerge in optomechanical networks, when we control the breaking of spatiotemporal symmetries and Hermiticity?</li> </ul> </li> </ul> <ul> <li> <h5><strong><a href="https://www.optomechanics.nl/research/">Nanophotonics for sensing and communication</a></strong></h5> <ul> <li>How can light be routed and switched in new ways, at minimal energy consumption and beyond the confines of reciprocity?</li> <li>How can we use the complexity of photonic interactions in metasurfaces towards applications in imaging and metrology?</li> <li>How can nanophotonic field enhancement improve sensors of small forces, fields, and molecules?</li> </ul> </li> </ul> <p>For all of these, we develop state-of-art nanoscale devices that seek to push the limits of what is possible. For more information, see the <a href="https://www.optomechanics.nl/research/">research</a> page and our <a href="https://www.optomechanics.nl/publications/">publications</a>.</p> <p>聽</p> <h3><img decoding="async" class="alignright wp-image-892 " src="https://www.optomechanics.nl/wp-content/uploads/2023/12/Ewold_inlab1-300x200.jpg" alt="" width="375" height="250" srcset="https://www.optomechanics.nl/wp-content/uploads/2023/12/Ewold_inlab1-300x200.jpg 300w, https://www.optomechanics.nl/wp-content/uploads/2023/12/Ewold_inlab1-1024x683.jpg 1024w, https://www.optomechanics.nl/wp-content/uploads/2023/12/Ewold_inlab1-768x512.jpg 768w, https://www.optomechanics.nl/wp-content/uploads/2023/12/Ewold_inlab1-1536x1024.jpg 1536w, https://www.optomechanics.nl/wp-content/uploads/2023/12/Ewold_inlab1-2048x1365.jpg 2048w" sizes="(max-width: 375px) 100vw, 375px" />About Ewold Verhagen</h3> <p style="text-align: justify;">Ewold Verhagen leads the <em>Photonic Forces</em> group at AMOLF, and is part-time professor of Applied Physics at Eindhoven University of Technology. He heads the <em>Nanophotonics</em> center at AMOLF and is scientific coordinator of the <em>NanoLab Amsterdam</em>. He previously worked at EPFL and AMOLF. His research interests span various directions within nanophotonics and nanomechanics, including cavity optomechanics, classical and quantum sensing, photonic crystals, nanoscale quantum optics, plasmonics, and metamaterials.</p> <p></p> <nav class="pagination group"> </nav> <div class="clear"></div> </div> </article> </div> </main> <div class="sidebar s1 collapsed" data-position="right" data-layout="col-2cl" data-sb-id="s1"> <button class="sidebar-toggle" title="Expand Sidebar"><i class="fas sidebar-toggle-arrows"></i></button> <div class="sidebar-content"> <div class="sidebar-top group"> <p>NEWS</p> </div> <div id="alxposts-2" class="widget widget_hu_posts"> <h3 class="widget-title"></h3> <ul class="alx-posts group thumbs-enabled"> <li> <div class="post-item-thumbnail"> <a href="https://www.optomechanics.nl/update/observation-of-landau-levels-in-photonic-crystals/"> <img width="520" height="245" src="https://www.optomechanics.nl/wp-content/uploads/2025/02/Barczyk_coversuggestion_2-520x245.jpg" class="attachment-thumb-medium size-thumb-medium no-lazy wp-post-image" alt="" decoding="async" loading="lazy" /> </a> </div> <div class="post-item-inner group"> <p class="post-item-title"><a href="https://www.optomechanics.nl/update/observation-of-landau-levels-in-photonic-crystals/" rel="bookmark">Observation of Landau levels in photonic crystals</a></p> <p class="post-item-date">April 23, 2024</p> </div> </li> <li> <div class="post-item-thumbnail"> <a href="https://www.optomechanics.nl/update/optomechanical-kitaev-chain/"> <img width="520" height="245" src="https://www.optomechanics.nl/wp-content/uploads/2024/03/bkc_hor-520x245.jpg" class="attachment-thumb-medium size-thumb-medium no-lazy wp-post-image" alt="" decoding="async" loading="lazy" /> </a> </div> <div class="post-item-inner group"> <p class="post-item-title"><a href="https://www.optomechanics.nl/update/optomechanical-kitaev-chain/" rel="bookmark">Optomechanical Kitaev chain</a></p> <p class="post-item-date">March 28, 2024</p> </div> </li> <li> <div class="post-item-thumbnail"> <a href="https://www.optomechanics.nl/update/phd-defense-jente-vandersmissen/"> <img width="520" height="245" src="https://www.optomechanics.nl/wp-content/uploads/2024/03/081223-Vandersmissen-9-520x245.jpg" class="attachment-thumb-medium size-thumb-medium no-lazy wp-post-image" alt="" decoding="async" loading="lazy" /> </a> </div> <div class="post-item-inner group"> <p class="post-item-title"><a href="https://www.optomechanics.nl/update/phd-defense-jente-vandersmissen/" rel="bookmark">PhD defense Jente Vandersmissen</a></p> <p class="post-item-date">December 8, 2023</p> </div> </li> <li> <div class="post-item-thumbnail"> <a href="https://www.optomechanics.nl/update/phd-defense-rene-barczyk/"> <img width="520" height="245" src="https://www.optomechanics.nl/wp-content/uploads/2023/12/WhatsApp-Image-2023-12-06-at-09.59.10_copy-520x245.jpeg" class="attachment-thumb-medium size-thumb-medium no-lazy wp-post-image" alt="" decoding="async" loading="lazy" /> </a> </div> <div class="post-item-inner group"> <p class="post-item-title"><a href="https://www.optomechanics.nl/update/phd-defense-rene-barczyk/" rel="bookmark">PhD defense Ren茅 Barczyk</a></p> <p class="post-item-date">November 10, 2023</p> </div> </li> </ul> </div> </div> </div> </div> </div> </div> </div> <footer id="footer"> <section class="container" id="footer-bottom"> <div class="container-inner"> <a id="back-to-top" href="#"><i class="fas fa-angle-up"></i></a> <div class="hu-pad group"> <div class="grid one-half"> <div id="copyright"> <p>Photonic Forces © 2025. 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