{'fraction_non_alphanumeric': 0.014234875444839857, 'fraction_numerical': 0.02609727164887307, 'mean_word_length': 5.298507462686567, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Temperature dependence of multiphonon absorption in zinc selenide.

Bulk and surface absorption coefficients of zinc selenide have been measured by 10.6-microm laser calorimetry at temperatures between 200 degrees C and 300 degrees C. The surface absorption characteristic shows evidence of the disappearance of an absorbing species at temperatures above 120 degrees C and the thermal activation of a second species above 200 degrees 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.