强激光与粒子束2012，Vol.24Issue(1)：65-68,4.DOI:10.3788/HPLPB20122401.0065
Airy光束在Kerr介质中的传输特性
Propagation properties of Airy beams in Kerr medium
摘要
Abstract
The effects of Kerr nonlinearity on Airy beams are investigated using the nonlinear Schrodinger equation. Based on the method of moments, the evolution of effective beam width is analytically obtained as well as the collapse power for Airy beams propagating in Kerr medium. Numerical simulations indicate that central parts of the major lobe of Airy beams give rise to initially radial compression during propagation even though the root-mean-square beam width broadens. Partial collapse of the central parts will appear for input power below the threshold for a global collapse. The field distributions of Airy beams are different during propagation in different media while the profiles and trajectories of the beams still remain invariant. In focused Kerr medium, the field of Airy beams is focused on center. In disfocused Kerr medium, it is dispersed.关键词
Airy光束/Kerr介质/非线性薛定谔方程/崩塌功率Key words
Airy beams/Kerr medium/nonlinear Schrodinger equation/collapse power分类
数理科学引用本文复制引用
郑红平..Airy光束在Kerr介质中的传输特性[J].强激光与粒子束,2012,24(1):65-68,4.基金项目
浙江省教育厅基金项目 （）
国家高技术发展计划项目 （）
