Transient-grating study of amorphous As2S3 films
作者： Keiji Tanaka
DOI: 10.1063/1.342872
关键词: Optical storage 、 Excited state 、 Photorefractive effect 、 Amorphous solid 、 Photodarkening 、 Grating 、 Thin film 、 Molecular physics 、 Optics 、 Chemistry 、 Refractive index
摘要: Dynamics of the photoinduced refractive‐index change in glassy As2S3 excited by pulsed light have been studied using a novel transient‐grating technique, which grating is produced projecting comb‐filter images. Monotonic relaxations μs region are observed at room temperature and 80 K. The results discussed on basis single‐and‐double well model proposed for photodarkening phenomenon.
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