FREQUENCY AND TEMPERATURE-DEPENDENCE OF THE VIBRATIONAL-RELAXATION OF THE SH STRETCH MODE IN VITREOUS AS2S3

被引：20

作者：

HAPPEK, U ^{[1
]}

ENGHOLM, JR ^{[1
]}

SIEVERS, AJ ^{[1
]}

机构：

[1] CORNELL UNIV,CTR MAT SCI,ITHACA,NY 14853

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 221卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(94)00263-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The non-radiative relaxation of the SH vibrational stretch mode in hydrogen doped As2S3 glass has been measured using infrared picosecond laser saturation spectroscopy. A lifetime on the order of 10(-10) s is found at low temperature that varies by a factor of 6 across the broad SH absorption line, demonstrating a site-dependent relaxation rate. A temperature dependence study indicates that the stretch mode relaxes through a multi-vibrational decay into modes of the glassy host.

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收藏

页码：279 / 282

页数：4

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