Light-induced relaxation of holographic gratings in amorphous As2S3 films

被引：14

作者：

Teteris, J ^{[1
]}

Nordman, O ^{[1
]}

机构：

[1] UNIV JOENSUU, DEPT PHYS, FIN-80101 JOENSUU, FINLAND

来源：

OPTICS COMMUNICATIONS | 1997年 / 138卷 / 4-6期

关键词：

PHOTOINDUCED CHANGES; CHALCOGENIDE GLASSES; EVAPORATED AS2S3; AS-S;

D O I：

10.1016/S0030-4018(97)00073-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The dependence of the holographic recording self-enhancement on the illumination intensity of the holographic gratings has been experimentally studied in amorphous as-evaporated As2S3 films. The relaxation time of the self-enhancement was found to decrease exponentially as a function of the exciting laser beam intensity. Results are explained by assuming that light induces the decrease of the viscosity.

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收藏

页码：279 / 283

页数：5

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