Simultaneous interferometric measurement of linear coefficient of thermal expansion and temperature-dependent refractive index coefficient of optical materials

James A. Corsetti, William E. Green, Jonathan D. Ellis, Greg R. Schmidt, Duncan T. Moore

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Characterizing the thermal properties of optical materials is necessary for understanding how to design an optical system for changing environmental conditions. A method is presented for simultaneously measuring both the linear coefficient of thermal expansion and the temperature-dependent refractive index coefficient of a sample interferometrically in air. Both the design and fabrication of the interferometer is presented as well as a discussion of the results of measuring both a steel and a CaF2 sample.

Original languageEnglish (US)
Pages (from-to)8145-8152
Number of pages8
JournalApplied optics
Volume55
Issue number29
DOIs
StatePublished - Oct 10 2016
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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