Native oxide layer effect on polarization cancellation for mirrors over the visible to near-infrared region

Suchandra Banerjee, Russell Chipman, Nathan Hagen, Yukitoshi Otani

Research output: Contribution to journalArticle

Abstract

The presence of native oxide layers on aluminum mirrors can be a nuisance for precision optical design. As the native oxide thickness varies from mirror to mirror, its effect cannot be completely canceled even in the conventional crossed fold mirror geometry. We show how this effect arises and how it can be mitigated, and provide an experimental demonstration in which the residual linear retardance and linear diattenuation are reduced to <0.14° and <0.001, respectively, over the visible and near-infra-red spectral range.

Original languageEnglish (US)
JournalAdvanced Optical Technologies
DOIs
StateAccepted/In press - Jan 1 2020

Keywords

  • Mueller matrix polarimeter
  • oxide layer
  • polarization
  • polarization ray tracing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Instrumentation

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