Simulation analysis of evolution of hot-images induced by coplanar multi-scatterers  

作　　者：彭涛 赵建林 李东 叶知隽 谢良平 

机构地区：[1]Institute of Optical Information Science and Technology,Shaanxi Key Laboratory of Optical Information Technology,School of Science,Northwestern Polytechnical University

出　　处：《Chinese Physics B》2009年第5期1884-1890,共7页中国物理B（英文版）

基　　金：supported by the Joint Foundation of National Natural Science Foundation of China and the Science Foundation of the Chinese Academy of Engineering Physics,China(Grant No 10576023);the Doctorate Foundation of Northwestern Polytechnical University,China(Grant No CX200714)

摘　　要：Based on the diffraction theory model for hot-image formation, the evolution of hot-images induced by multiscatterers located in the same plane perpendicular to the propagation axis is numerically simulated. The simulation results show that hot-images induced by coplanar multi-scatterers are also coplanar no matter whether they exist simultaneously or severally. However, if they exist simultaneously the peak intensity of the primary hot-images is weaker than if they exist severally. The unequal competition for energy between the scattered beams from the scatterers leads to the fact that part of the corresponding hot-images are relatively enhanced and the others are restrained. The results show that the hot-images of certain scatterers become stronger when any of these parameters, i.e. amplitude modulation coefficient, phase modulation coefficient and size of the surrounding scatterer, decrease.Based on the diffraction theory model for hot-image formation, the evolution of hot-images induced by multiscatterers located in the same plane perpendicular to the propagation axis is numerically simulated. The simulation results show that hot-images induced by coplanar multi-scatterers are also coplanar no matter whether they exist simultaneously or severally. However, if they exist simultaneously the peak intensity of the primary hot-images is weaker than if they exist severally. The unequal competition for energy between the scattered beams from the scatterers leads to the fact that part of the corresponding hot-images are relatively enhanced and the others are restrained. The results show that the hot-images of certain scatterers become stronger when any of these parameters, i.e. amplitude modulation coefficient, phase modulation coefficient and size of the surrounding scatterer, decrease.

关 键 词：hot-image small-scale self-focusing optical damage SCATTERER 

分 类 号：TN24[电子电信—物理电子学]