平面上方小球的光散射计算  

Simulation of light scattering by a sphere on a plane surface

作　　者：李久喜[1] 安毓英[1] 林晓春[1] 

机构地区：[1]西安电子科技大学技术物理学院

出　　处：《激光杂志》2005年第4期54-55,共2页Laser Journal

摘　　要：本文基于扩展的Mie理论方法求解平面上方小球的散射问题。通过建立小球和平面的模型,解决小球和平面的边界条件问题,并利用矢量波函数展开的方法求得了散射场。强调了小球与表面的相互作用。散射总场是小球本身的散射场,平面反射场,和小球与平面之间的相互作用场三者的叠加。结论给出了均匀介质小球的微分散射截面图并进行了详细讨论。The light - scattering problem of sphere on or near a plane surface is solved by using an extension of the Mie theoty.The approach taken is to solve the boundary conditions at the sphere and at the surface simultaneously and to develop the scattering amplitude matrices, the total scattered field can be found as the superposifion of the field scattered by the sphere, the field reflects off the plane interface and the interacting field between the sphere and plane. The figure of the differential scattering cross section（ DSCS）of a sphere is calculated and discussed in detail.

关 键 词：物理光学 光散射 扩展 MIE理论 相互作用 

分 类 号：O436.2[机械工程—光学工程]