Self-focusing in two-color collinear optical Kerr measurements

被引：1

作者：

Jia, Sen

Yan, Lihe

Si, Jinhai ^{[1
]}

Yi, Wenhui

Chen, Feng

Hou, Xun

机构：

[1] Xi An Jiao Tong Univ, Key Lab Phys Elect & Devices, Minist Educ, Xian 710049, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2010年 / 283卷 / 21期

基金：

高等学校博士学科点专项科研基金; 美国国家科学基金会;

关键词：

NONLINEAR POLARIZATION ROTATION; FEMTOSECOND LASER-PULSES; SILICON WAVE-GUIDES; MOVING FOCUS; GEL GLASSES; 3RD-ORDER; AIR; PROPAGATION; PHTHALOCYANINE; IONIZATION;

D O I：

10.1016/j.optcom.2010.06.036

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We performed the femtosecond two-color collinear optical Kerr shutter (OKS) measurements in a thick Kerr medium. The time-resolved OKS signals showed a multi-peak structure and a large broadening with respect to that for non-collinear. By measuring the time-resolved OKS signals in the sample at different powers, we demonstrated that the abnormal profile of the OKS signals was mainly attributed to self-focusing and refocusing of the pump beam in the Kerr medium and the group velocity difference between the pump and the probe beams. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：4346 / 4349

页数：4

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