Nonlinear Interaction of Elliptical Laser Beam with Collisional Plasma：Effect of Linear Absorption  

作　　者：keshav walia sarabjit kaur 

机构地区：[1]Department of Physics, DAV University, Jalandhar, Punjab-144012, India

出　　处：《Communications in Theoretical Physics》2016年第1期78-82,共5页理论物理通讯（英文版）

摘　　要：In the present work,nonlinear interaction of elliptical laser beam with collisional plasma is studied by using paraxial ray approximation.Nonlinear differential equations for the beam width parameters of semi-major axis and semi-minor axis of elliptical laser beam have been set up and solved numerically to study the variation of beam width parameters with normalized distance of propagation.Effects of variation in absorption coefficient and plasma density on the beam width parameters are also analyzed.It is observed from the analysis that extent of self-focusing of beam increases with increase/decrease in plasma density/absorption coefficient.

关 键 词：elliptical laser beam paraxial ray approximation absorption coefficient plasma density 

分 类 号：O53[理学—等离子体物理]