Holographic self-amplification in amorphous As-Se semiconductor films

被引：0

作者：

Pashkevich, V ^{[1
]}

Ketolainen, P ^{[1
]}

Salminen, O ^{[1
]}

机构：

[1] UNIV JOENSUU,DEPT PHYS,VAISALA LAB,SF-80101 JOENSUU,FINLAND

来源：

JOURNAL OF MODERN OPTICS | 1996年 / 43卷 / 08期

关键词：

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Holographic self-amplification in amorphous As55Se45 and As65Se35 films has been studied. Results on this amplification over a wide range of initial diffraction efficiencies 10(-5)% < eta(0) < 1% are reported. The degree of amplification increases with decreasing eta(0). At fixed values of eta(0) and of the sample thickness, the maximum self-amplification corresponds to a period Lambda = 2. 0 mu m of the grating hologram. An increase in the diffraction efficiency in the dark has been observed for the first time in As-Se films.

引用

页码：1563 / 1567

页数：5

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