Abstract
Bulk and surface absorption coefficients of zinc selenide have been measured by 10.6-μm laser calorimetry at temperatures between 20 °C and 300 °C. The surface absorption characteristic shows evidence of the disappearance of an absorbing species at temperatures above 120 °C and the thermal activation of a second species above 200 °C with an activation energy near 0.13 eV. The bulk characteristic shows a monotonic increase with temperature that is consistent in its general form with the predictions of multiphonon theory, but with systematic deviations. These deviations are explained by the combination of a temperature independent extrinsic absorption and a well defined peak near 960 cm−1 in the room temperature absorption spectrum.
© 1977 Optical Society of America
Full Article | PDF ArticleMore Like This
Claude A. Klein, Richard P. Miller, and Donald L. Stierwalt
Appl. Opt. 33(19) 4304-4313 (1994)
Herbert G. Lipson
Appl. Opt. 16(11) 2902-2908 (1977)
Bernard Bendow, Herbert G. Lipson, and Stanford P. Yukon
Appl. Opt. 16(11) 2909-2913 (1977)