H. Cai, J. A. Dolan, L. Delalande, J. Pablo, P. Nealey, D. López
{"title":"Exploring the parameter space of broadband all-dielectric liquid crystal tunable metasurfaces in the visible","authors":"H. Cai, J. A. Dolan, L. Delalande, J. Pablo, P. Nealey, D. López","doi":"10.1117/12.2583311","DOIUrl":"https://doi.org/10.1117/12.2583311","url":null,"abstract":"Metasurfaces infiltrated with liquid crystals have become a particularly promising means of tuning their optical properties, due to liquid crystals’ large and broadband optical anisotropy. In order to fully explore the parameter space of broadband all-dielectric liquid crystal tunable metasurfaces in the visible, we undertake a comprehensive study based on TiO2 nanoresonator superarrays, sweeping geometric parameters (i.e. disc radius and disc-to-disc gap). We demonstrate both electrical and thermal switching, and visualize the resonance change caused by either the orientation or phase change of liquid crystal, which provides a practical library for the rational design of liquid crystal tunable metasurfaces.","PeriodicalId":193476,"journal":{"name":"High Contrast Metastructures X","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116491999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Metasurfaces characterization by quantitative phase imaging with SID4 wavefront sensor","authors":"V. Genuer, R. Laberdesque, B. Wattellier","doi":"10.1364/FIO.2020.FW5F.1","DOIUrl":"https://doi.org/10.1364/FIO.2020.FW5F.1","url":null,"abstract":"Quantitative phase imaging (QPI) solutions are developed to characterize metasurfaces in single-shot. SID4 wavefront sensor based on Quadriwave Lateral Shearing Interferometry (QWLSI), is used to provide the quantitative phase information such as wavefront, PSF, MTF.","PeriodicalId":193476,"journal":{"name":"High Contrast Metastructures X","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122417771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}