Alteration of Optical Bragg Phenomenon by Substrate Roughness

Ricardo A. Fiallo, Chengzhi Li, Mark W. Horn, Akhlesh Lakhtakia

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

A Bragg mirror is a dielectric slab that is periodically nonhomogeneous in the thickness direction. It displays the Bragg phenomenon as a high-reflectance spectral regime that depends on the direction of propagation and the polarization state of the incident light. Implicit in both theoretical treatments and fabrication procedures is the smoothness of the surface on which the Bragg mirror is fabricated. We have found that the Bragg phenomenon exhibited in the visible regime by periodically nonhomogeneous thin films grown on glass substrates can be significantly affected, even nullified, by pre-fabrication roughening of the surface of the substrate.

Original languageEnglish (US)
Title of host publicationSurface Engineering and Forensics
EditorsAkhlesh Lakhtakia, Satish T. Bukkapatnam
PublisherSPIE
ISBN (Electronic)9781510660878
DOIs
StatePublished - 2023
EventSurface Engineering and Forensics 2023 - Long Beach, United States
Duration: Mar 15 2023Mar 16 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12490
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSurface Engineering and Forensics 2023
Country/TerritoryUnited States
CityLong Beach
Period3/15/233/16/23

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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