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Acoustic properties of characteristic acoustic impedance, longitudinal velocity and density for evaporated chalcogenide glass films of As-S, As2Se3 and As-S-Se systems are determined by reflection loss measurements in an acoustic transmission line composed of sapphire/chalcogenide-glass-film/water system in the UHF range. It is found that, by appropriately selecting the As/S/Se composition ratio of the evaporation source, the characteristic acoustic impedance of the evaporated chalcogenide glass film can be controlled within a range of 5.53–9.30×106 kg m−2s−1.
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Kushibiki et al. (1981) studied this question.
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