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Multiphonon Absorption in the Alkaline Earth Fluorides

  • M. Chen
  • M. Hass
  • T. C. McGill
Part of the Optical Physics and Engineering book series (OPEG)

Abstract

The temperature dependence of the intrinsic multiphonon absorption in CaF2, SrF2 and BaF2 was obtained at 10.6 um from 300°K to 800°K. These results were compared with two different theoretical approaches, both of which have given reasonable agreement for the alkali halides. Best agreement with experiment was obtained with the approach involving a quantum-mechanical perturbative treatment of the potential whose parameters are determined from compressibility and lattice frequency at each temperature.

Keywords

Thermal Expansion Coefficient Potential Constant Interatomic Potential Morse Potential Alkali Halide 
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Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • M. Chen
    • 1
  • M. Hass
    • 1
  • T. C. McGill
    • 1
  1. 1.California Institute of TechnologyPasadenaUSA

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