摘要
对于非线性克尔介质中的环形斑调制光束 ,通过数值求解非线性 Schrodinger方程发现 :当入射光强度超过一定值时 ,光束在传输过程中将发生环半径偏移现象 .并对环半径偏移产生的条件、偏移的特点 ,以及自聚焦焦点上光强度的横向分布与环半径偏移之间的关系进行了详细的研究 .
The transmission of circle spot laser beam in Kerr medium is investigated by solving nonlinear Schrdinger equation numerically.The radius deviating of circle spot is observed in the transmission process if the laser beam power is above a certain value.In this paper,the characteristic and the threshold power of the radius deviating were reported.The relationship between the radius deviating and the intensity distribution at the focus points in vertical direction was discussed.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2002年第7期882-886,共5页
Acta Photonica Sinica
基金
教育部骨干教师基金 (批准号 :2 0 0 0 65 )资助项目
