物理学报Issue(14)：207-212,6.DOI:10.7498/aps.62.144208
非线性介质中强光对弱光聚焦的控制研究*
Nonlinear focusing of weak beam by another high power laser∗
摘要
Abstract
In this paper, we theoretically and experimentally investigate the controllable nonlinear focusing of the weak laser beam on the basis of the induced nonlinear effects by another strong pump laser beam. When couple laser beams co-propagate in the Kerr medium, it is possible to change the refractive index by the pump beam, and the locally changing medium in turn modifies the weaker probe beam. Depending on cross-phase modulation theory, we obtain an exact analytical solution to the model under the approximate condition and qualitatively verify it in experiment. The results show that the weaker probe beam can be induced to focus at any position due to induced nonlinear effects from the stronger pump beam under certain conditions.关键词
诱导聚焦/自聚焦/非线性折射率Key words
induced focusing/self-focusing/nonlinear refractive index引用本文复制引用
..非线性介质中强光对弱光聚焦的控制研究*[J].物理学报,2013,(14):207-212,6.基金项目
高等学校博士学科点专项科研基金(批准号:20110161110012)和湖南省自然科学基金(批准号:12JJ7005)资助的课题.*Project supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No.20110161110012) and the Natural Science Foundation of Hunan Province, China (Grant No.12JJ7005) （批准号:20110161110012）
