Measurements of nonlinear refractive index in glasses

被引：0
|
作者：
Sirazetdinov, VS [1 ]
Charukhchev, AV [1 ]
Dmitriev, DI [1 ]
Ivanova, IV [1 ]
机构：
[1] Res Inst Complex Testing Optoelect Devices, Sosnovyi Bor 188540, Leningrad Regio, Russia
来源：
LASER OPTICS 2003: SOLID STATE LASERS AND NONLINEAR FREQUENCY CONVERSION | 2004年 / 5478卷
关键词：
nonlinear refractive index; glass; measurement; radiation self-influence;
D O I：
10.1117/12.558501
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Method for measuring nonlinear refractive index (n(2)) of optical materials is presented. it is based on the analysis of large scale beam distortions caused by the nonlinear aberrational lens induced by power radiation in the medium under study. Absolute n(2)-values for new Russian laser phosphate glass KGSS 0180/35 (n(2) approximate to 1.2(.)10(-13) CGSE units) and widely used glasses GLS 22 (n(2) approximate to 1.9(.)10(-13) CGSE units) and K8 (n(2) approximate to 1.4(.)10(-13) CGSE units) were obtained with this method for laser pulse duration of 4 ns. Also, evaluation of nonlinear phase delay induced in the laser beam that has passedthrough the glass samples under study for a longer pulse duration of - up to 25 ns has been performed.
引用
收藏
页码：80 / 87
页数：8
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