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Measurements of Stress-Optic Coefficients in the Transparent Regime of Solids

  • C. A. Pitha
  • J. D. Friedman
Part of the Optical Physics and Engineering book series (OPEG)

Abstract

The lack of data on infrared stress-optic coefficients is due primarily to experimental difficulties in adapting existing methods, which were devised for measurements in the visible. This report describes a method readily adaptable to laser frequencies in both the visible and infrared, and sensitive enough for measurement of materials of low elastic limit, such as the alkali halides. We treat the specimen as a linear retarder and determine the phase change between two linearly polarized rays oriented parellel and perpendicular to the applied stress direction, from which the birefringence, q11−q12, and the constant q44 may be calculated. We report the results of measurements at 0.63μm and 10.6μm on a variety of solids, including alkali halides, alkaline earth fluorides, and chalcogenides.

Keywords

Optical Property Phase Change Alkaline Earth Laser Frequen Line Earth 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • C. A. Pitha
    • 1
  • J. D. Friedman
    • 1
  1. 1.Air Force Cambridge Res. Labs.Hanscom AFBUSA

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