Measurement of nonlinear refraction of thick samples using nonlinear-imaging technique with a phase object

被引：4

作者：

Nie, Zhongquan ^{[1
]}

Shi, Guang ^{[1
]}

Li, Zhongguo ^{[1
]}

Wang, Yuxiao ^{[1
]}

Zhang, Xueru ^{[1
]}

Shui, Min ^{[3
]}

Ao, Guanghong ^{[1
]}

Yang, Junyi ^{[2
]}

Song, Yinglin ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

[2] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China

[3] China Acad Engn Phys, Res Ctr Laser Fus, Sci & Technol Plasma Phys Lab, Mianyang 621900, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2014年 / 59卷

关键词：

Nonlinear refractive index; NIT-PO; Effective interaction length; Z-SCAN; OPTICAL NONLINEARITIES; BEAM; MEDIA; OPTIMIZATION; ABSORPTION; 3RD-ORDER; GLASSES; SYSTEM; LIMITS;

D O I：

10.1016/j.optlastec.2013.11.020

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The third-order nonlinear refractive index of carbon disulfide (CS2) with different thicknesses is measured by a nonlinear-imaging technique with a phase object (NIT-PO). The propagating characteristics of the laser beam within thick medium are analyzed by numerically solving the electromagnetic wave equation. By theoretically calculating, we study the relationship of the phase shift induced by nonlinear refraction versus medium thicknesses. Fitting the output image with the help of the effective interaction length, the nonlinear refractive index n2 of CS2 can be determined, which suggests a onesingle-shot method for the investigation of optical nonlinearity in thick medium. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.

引用

页码：36 / 42

页数：7

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