{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,13]],"date-time":"2026-09-13T18:03:48Z","timestamp":1789322628085,"version":"build-2803163510"},"reference-count":41,"publisher":"Wiley","issue":"15","license":[{"start":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T00:00:00Z","timestamp":1786060800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T00:00:00Z","timestamp":1786060800000},"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":[[2026,8,13]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>There is a growing demand for ultra\u2010compact, low\u2010cost, and high\u2010fidelity snapshot hyperspectral imaging devices across various fields. However, conventional systems struggle to fulfill all these evolving requirements. Although a single diffractive optical element offers a compact solution, its degrees of freedom in light phase modulation are limited. Here, we exploit wavelength\u2010dependent characteristics of the point spread function (PSF) to design a dispersion\u2010engineered metalens that serves as a key element for hyperspectral imaging. The PSF of the metalens is tailored to undergo an extra lateral shift as a function of wavelength, thereby encoding richer spectral information. An efficient differentiable computational model is developed to simulate the hyperspectral imaging process, together with a downstream spectral reconstruction network. The metalens structure and the reconstruction network are subsequently optimized in an end\u2010to\u2010end deep learning joint optimization framework. We fabricated the optimal metalens using two\u2010photon grayscale lithography and built a prototype hyperspectral imaging camera. Both indoor and outdoor experimental results validated its outstanding spatial\u2010spectral reconstruction performance, highlighting the effectiveness in practical applications.<\/jats:p>","DOI":"10.1002\/nap2.70245","type":"journal-article","created":{"date-parts":[[2026,8,8]],"date-time":"2026-08-08T03:25:36Z","timestamp":1786159536000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Compact Snapshot Hyperspectral Imaging With Neural Dispersion\u2010Engineered Metalens"],"prefix":"10.1002","volume":"15","author":[{"given":"Peng","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Precision Machinery and Precision Instrumentation University of Science and Technology of China  Hefei China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaru","family":"Chu","sequence":"additional","affiliation":[{"name":"Department of Precision Machinery and Precision Instrumentation University of Science and Technology of China  Hefei China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4275-5458","authenticated-orcid":false,"given":"Yuhang","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Precision Machinery and Precision Instrumentation University of Science and Technology of China  Hefei China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,7]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.heliyon.2024.e33208"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11042\u2010024\u201018562\u20109"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11220\u2010019\u20100257\u20108"},{"key":"e_1_2_11_5_1","first-page":"41","volume-title":"Advances in Hyperspectral Image Processing Techniques","author":"Qian S. 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