High-Accuracy Measurement of Mid-IR Refractive Indices of GaAs/AlGaAs in Thin-Film Multilayers

Lukas W. Perner (Corresponding author), Georg Winkler, Gar-Wing Truong, David Follman, Jakob Fellinger, Maximilian Prinz, Stephan Puchegger, Garrett D. Cole, Oliver H. Heckl

Publications: Contribution to bookContribution to proceedingsPeer Reviewed

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.
Original languageEnglish
Title of host publicationOptical Interference Coatings Conference (OIC) 2022
Subtitle of host publicationVancouver, British Columbia Canada 19–24 June 2022
EditorsR. Sargent, A. Sytchkova
PublisherOptica Publishing Group
Number of pages3
ISBN (Electronic)978-1-957171-04-3
DOIs
Publication statusPublished - 2022
EventOptical Interference Coatings Conference - Whistler Conference Centre, Whistler, Canada
Duration: 19 Jun 202224 Jun 2022
https://www.optica.org/en-us/events/topical_meetings/optical_interference_coatings/

Conference

ConferenceOptical Interference Coatings Conference
Abbreviated titleOIC 2022
Country/TerritoryCanada
CityWhistler
Period19/06/2224/06/22
Internet address

Austrian Fields of Science 2012

  • 103021 Optics
  • 205002 Coating technology
  • 103040 Photonics
  • 104026 Spectroscopy

Keywords

  • Multilayers
  • Optical devices
  • Refractive index
  • Scanning electron microscopy
  • Thin film optical properties

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