Studies of third-order optical nonlinearities and optical limiting properties of azo dyes

被引：47
|
作者：
Gayathri, C. [1 ]
Ramalingam, A. [1 ]
机构：
[1] Anna Univ, Dept Phys, Ctr Laser Technol, Madras 600025, Tamil Nadu, India
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2008年 / 69卷 / 03期
关键词：
azo dye; Z-scan; third-order nonlinear susceptibility; optical limiting;
D O I：
10.1016/j.saa.2007.05.060
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
In order to protect optical sensors and human eyes from debilitating laser effects, the intensity of the incoming laser light has to be opportunely reduced. Here, we report our results on the third-order optical nonlinearity and optical limiting properties of three azo dyes exposed to a 532 nm continuous wave laser. We have observed low power optical limiting based on nonlinear refraction in our samples. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：980 / 984
页数：5
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