{"title":"Excitation of all-dielectric meta-atoms with structured light beams","authors":"P. Terekhov, N. Chandra, N. Litchinitser","doi":"10.1117/12.2594870","DOIUrl":null,"url":null,"abstract":"Structured light carrying spin and orbital angular momentum brings about new light-matter interactions in optical nanostructures. We demonstrate the possibility of using structured light beams carrying orbital angular momentum (OAM) to access resonant modes of all-dielectric meta-atoms that cannot be excited by the conventional Gaussian beam or by a plane wave. We use multipole decomposition approach to match extinction resonances with high-order multipole excitation. These results can find applications in sensing, spectroscopy, and enable new regimes of nonlinear optical interactions.","PeriodicalId":389503,"journal":{"name":"Metamaterials, Metadevices, and Metasystems 2021","volume":"58 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metamaterials, Metadevices, and Metasystems 2021","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.2594870","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Structured light carrying spin and orbital angular momentum brings about new light-matter interactions in optical nanostructures. We demonstrate the possibility of using structured light beams carrying orbital angular momentum (OAM) to access resonant modes of all-dielectric meta-atoms that cannot be excited by the conventional Gaussian beam or by a plane wave. We use multipole decomposition approach to match extinction resonances with high-order multipole excitation. These results can find applications in sensing, spectroscopy, and enable new regimes of nonlinear optical interactions.