Photoexpansion in As2S3 glass
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概要
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Mechanisms of photoexpansion in chalcogenide glasses have been studied in three respects. A detailed x-rayinvestigation of As2S3 shows that the photoexpansion can be connected with asymmetric broadening of the firstsharp diffraction peak. Comparison between radiation-induced volume changes and density ratios of glassyto-crystalline forms in As2S3 and SiO2 implies that As2S3 can expand since the glass is as dense as its crystal.When As2S3 is exposed to illumination, the photoexpansion appears earlier and later than the photodarkeningfor bandgap and subbandgap illumination, respectively. These observations are discussed from a microscopicpoint of view.
- American Physical Societyの論文
American Physical Society | 論文
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