{"title":"Multi-spectral all-dielectric co-aperture metasurface with high microwave transmission and infrared focusing.","authors":"Dengshuang Yi, Jiakai Zhang, Zhiyi Zhang, Jialin Mei, Jian Bai, Jiahui Fu, Kuang Zhang, Shah Nawaz Burokur","doi":"10.1364/OL.570413","DOIUrl":null,"url":null,"abstract":"<p><p>In this Letter, we propose a metasurface for microwave-infrared (MW-IR) co-aperture detection, which presents the advantages of low-profile, light-weight, and low cost for a facilitated integration compared to conventional MW-IR co-aperture devices. In the microwave domain, based on impedance matching, a polarization-insensitive transparent window at Ka band is achieved, and in the infrared domain, focusing is realized through a metalens by judiciously designing the diameter of the nanopillars to modulate the phase distribution at a wavelength of 9.68 <i>μ</i>m. To validate the co-aperture design framework, a proof-of-concept metasurface prototype is fabricated and experimentally tested. The measured results demonstrate good agreement with simulations, validating an innovative approach for MW-IR hybrid sensing, which may have potential applications in target detection, autonomous vehicles, and smart homes.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 18","pages":"5905-5908"},"PeriodicalIF":3.3000,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.570413","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
In this Letter, we propose a metasurface for microwave-infrared (MW-IR) co-aperture detection, which presents the advantages of low-profile, light-weight, and low cost for a facilitated integration compared to conventional MW-IR co-aperture devices. In the microwave domain, based on impedance matching, a polarization-insensitive transparent window at Ka band is achieved, and in the infrared domain, focusing is realized through a metalens by judiciously designing the diameter of the nanopillars to modulate the phase distribution at a wavelength of 9.68 μm. To validate the co-aperture design framework, a proof-of-concept metasurface prototype is fabricated and experimentally tested. The measured results demonstrate good agreement with simulations, validating an innovative approach for MW-IR hybrid sensing, which may have potential applications in target detection, autonomous vehicles, and smart homes.
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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