中国物理B ›› 2009, Vol. 18 ›› Issue (5): 1884-1890.doi: 10.1088/1674-1056/18/5/028
彭涛, 赵建林, 李东, 叶知隽, 谢良平
Peng Tao(彭涛), Zhao Jian-Lin(赵建林)†, Li Dong(李东), Ye Zhi-Jun(叶知隽), and Xie Liang-Ping(谢良平)
摘要: Based on the diffraction theory model for hot-image formation, the evolution of hot-images induced by multi-scatterers 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.
中图分类号: (Beam trapping, self-focusing and defocusing; self-phase modulation)