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Schr dinger方程 ,发现当入射光强度超过一定值时 ,光束在传输过程中发生分束现象 .对光分束的阈值、光分束与环半径及半宽度的关系、分束光的特点 。
The transmission of circular spot laser beam in a Kerr-medium is investigated by solving the nonlinear Schrodinger equation numerically. The beam splitting and splitting variation are observed in the transmission process if the laser beam power is above a certain value. The threshold power is related with the radius and half width of the circular spot. It is also discovered that the beam splitting depends upon the intensity distribution at the focus point in the vertical direction.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第9期1927-1932,共6页
Acta Physica Sinica
基金
国家教育部骨干教师基金 (批准号 :2 0 0 0 65 )资助的课题~~
