{"title":"Directional Perturbation-Driven Independent Control of Orthogonally Polarized Phases in Metasurfaces.","authors":"Chao Feng,Tao He,Jingyuan Zhu,Siyu Dong,Zeyong Wei,Yuzhi Shi,Zhiyuan Jiang,Zhanshan Wang,Xinbin Cheng","doi":"10.1021/acs.nanolett.5c03429","DOIUrl":null,"url":null,"abstract":"Independent control of the orthogonally polarized phase is fundamental to polarization-modulated metasurfaces. Here, we present a directional perturbation-driven strategy enabling independent control of orthogonally polarized phases in metasurfaces. By introducing a directional perturbation along the short axis of an anisotropic waveguide, the phase shift of the short-axis polarization can be independently regulated, while the phase shift of the orthogonal polarization is maintained. This perturbation also enhances electric field localizations, leading to superior optical efficiency. As a proof of concept, we demonstrate full Poincaré sphere waveplates and an anomalous refractive quarter waveplate. Our work advances the development of practical, high-efficiency polarization optics.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"40 1","pages":""},"PeriodicalIF":9.1000,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Letters","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acs.nanolett.5c03429","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Independent control of the orthogonally polarized phase is fundamental to polarization-modulated metasurfaces. Here, we present a directional perturbation-driven strategy enabling independent control of orthogonally polarized phases in metasurfaces. By introducing a directional perturbation along the short axis of an anisotropic waveguide, the phase shift of the short-axis polarization can be independently regulated, while the phase shift of the orthogonal polarization is maintained. This perturbation also enhances electric field localizations, leading to superior optical efficiency. As a proof of concept, we demonstrate full Poincaré sphere waveplates and an anomalous refractive quarter waveplate. Our work advances the development of practical, high-efficiency polarization optics.
期刊介绍:
Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including:
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