Temperature Dependence of Multiphonon Absorption
- 10 September 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 31 (11) , 710-714
- https://doi.org/10.1103/physrevlett.31.710
Abstract
The temperature dependence of multiphonon absorption in NaF, NaCl, and KCl was studied from room temperature to near the melting point at a wavelength of 10.6 μm. A large discrepancy was noted between the experimental results and those predicted using the usual expressions based upon temperature-dependent Bose-Einstein population factors and temperature-independent transition matrix elements.Keywords
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