Influence of acoustooptical modulation of laser radiation on the results of contactless photoelectromagnetic investigations

被引：1
|
作者：
Duka, P [1 ]
Nowak, M [1 ]
Solecka, B [1 ]
机构：
[1] Silesian Tech Univ, Inst Phys, PL-40019 Katowice, Poland
来源：
LASER TECHNOLOGY VII: APPLICATIONS OF LASERS | 2003年 / 5229卷
关键词：
photoelectromagnetic effect; acoustooptical modulation; laser beam; carrier lifetime;
D O I：
10.1117/12.520772
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The contactless photoelectromagnetic (PEM) method of determining carrier lifetimes in semiconductors needs high frequency modulation of laser light. Recently the acoustooptical modulation technique was used for this purpose. In this paper the influence of frequency of acoustooptical modulation on time dependence of intensity of laser light was examined. One can recognize the importance of taking into account in contactless PEM investigations of carrier lifetime the dependence of amplitude of illumination intensity on frequency of laser beam acoustooptical modulation.
引用
收藏
页码：329 / 333
页数：5
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