{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,29]],"date-time":"2026-08-29T08:16:45Z","timestamp":1787991405163,"version":"build-2784847793"},"reference-count":73,"publisher":"Wiley","issue":"13","license":[{"start":{"date-parts":[[2026,6,28]],"date-time":"2026-06-28T00:00:00Z","timestamp":1782604800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,6,28]],"date-time":"2026-06-28T00:00:00Z","timestamp":1782604800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Nanophotonics"],"published-print":{"date-parts":[[2026,7,13]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Over the past decade, multielement superconducting nanowire single\u2010photon detectors (SNSPDs) have emerged as the leading single\u2010photon detection technology due to their exceptional system detection efficiency (SDE), ultrahigh timing precision, and negligible dark counts. However, achieving these performances with a\n                    <jats:italic>single\u2010element<\/jats:italic>\n                    SNSPD has been an outstanding challenge due to a fundamental trade\u2010off: A large active area is necessary for high SDE, whereas a smaller area is crucial for higher photon count rates, lower dark counts, and lower jitter. Here, we introduce a dielectric cryogenic metalens integrated with a single\u2010element SNSPD to achieve high SDE with a smaller active area. We report a 77\u2010fold enhancement in the SDE of a metalensed SNSPD with a 5 m  5 m active area, compared with an identical reference SNSPD without a metalens, using a moderately sized 60 m  60 m metalens. Next, we theoretically demonstrate polarization\u2010resolved photodetection at the telecommunication wavelength using a bifunctional metalens. We achieve a cross\u2010detection probability of  2  between metalensed SNSPDs spaced at 10 m under illumination with\n                    <jats:italic>x<\/jats:italic>\n                    \u2010 and\n                    <jats:italic>y<\/jats:italic>\n                    \u2010polarized light. Integrating a multifunctional cryogenic metasurface with the state\u2010of\u2010the\u2010art SNSPDs may enable novel capabilities with reduced size, weight, power, cost, and cooling (SWaP\u2010) requirements.\n                  <\/jats:p>","DOI":"10.1002\/nap2.70172","type":"journal-article","created":{"date-parts":[[2026,6,29]],"date-time":"2026-06-29T04:55:11Z","timestamp":1782708911000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Cryogenic Dielectric Metasurface\u2010Integrated Superconducting Nanowire Single\u2010Photon Detectors"],"prefix":"10.1002","volume":"15","author":[{"given":"Amir","family":"Targholizadeh","sequence":"first","affiliation":[{"name":"Quantum Technology Laboratory \u2329Q|T|L\u232a Department of Electrical Engineering and Computer Science Syracuse University  Syracuse New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Grigoriy 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