Abstract
The absorption coefficient in the pretransparent regime (10.0>α>0.1 cm− 1) has been measured for several alkali halides as functions of temperature extending up to their melting points. The frequency dependence of the absorption coefficient is calculated by means of a breathing shell model using multiphonon density of states. The temperature dependence of the absorption coefficient is explained in terms of a temperature dependent effective phonon frequency.
Supported by a NATO Research Grant (No. 775).
On leave from Physics and Astronomy Department, Vanderbilt University, Nashville, Tenn. 37235.
Supported in part by Air Force Cambridge Research Laboratories, (AFSC), Contract F19628-72-C-0286.
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© 1975 Plenum Press, New York
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Barker, A.J., Wilkinson, G.R., Massa, N.E., Mitra, S.S. (1975). The High Frequency Tail of the Lattice Absorption Spectra of Simple Crystals. In: Mitra, S.S., Bendow, B. (eds) Optical Properties of Highly Transparent Solids. Optical Physics and Engineering. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-2178-1_4
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DOI: https://doi.org/10.1007/978-1-4684-2178-1_4
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