L. Perner, G. Winkler, G. Truong, D. Follman, J. Fellinger, Maximilian Prinz, S. Puchegger, G. Cole, O. Heckl
{"title":"High-Accuracy Measurement of Mid-IR Refractive Indices of GaAs/AlGaAs in Thin-Film Multilayers","authors":"L. Perner, G. Winkler, G. Truong, D. Follman, J. Fellinger, Maximilian Prinz, S. Puchegger, G. Cole, O. Heckl","doi":"10.1364/oic.2022.wa.5","DOIUrl":null,"url":null,"abstract":"We report a method to measure the refractive index of two or more materials in as-deposited thin-film structures by analysis of FTIR transmittance spectra and extraction of layer thicknesses via SEM, yielding excellent results for a GaAs/AlGaAs DBR.","PeriodicalId":301400,"journal":{"name":"Optical Interference Coatings Conference (OIC) 2022","volume":"27 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Interference Coatings Conference (OIC) 2022","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1364/oic.2022.wa.5","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
We report a method to measure the refractive index of two or more materials in as-deposited thin-film structures by analysis of FTIR transmittance spectra and extraction of layer thicknesses via SEM, yielding excellent results for a GaAs/AlGaAs DBR.