中国物理B ›› 2009, Vol. 18 ›› Issue (5): 1884-1890.doi: 10.1088/1674-1056/18/5/028

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Simulation analysis of evolution of hot-images induced bycoplanar multi-scatterers

彭涛, 赵建林, 李东, 叶知隽, 谢良平   

  1. Institute of Optical Information Science and Technology, Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an 710072, China
  • 收稿日期:2008-03-12 修回日期:2008-10-27 出版日期:2009-05-20 发布日期:2009-05-20
  • 基金资助:
    Project 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), and the Doctorate Foundation of Northwestern Polytechnical Unive

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

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)   

  1. Institute of Optical Information Science and Technology, Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2008-03-12 Revised:2008-10-27 Online:2009-05-20 Published:2009-05-20
  • Supported by:
    Project 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), and the Doctorate Foundation of Northwestern Polytechnical Unive

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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.

关键词: hot-image, small-scale self-focusing, optical damage, scatterer

Abstract: 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.

Key words: hot-image, small-scale self-focusing, optical damage, scatterer

中图分类号:  (Beam trapping, self-focusing and defocusing; self-phase modulation)

  • 42.65.Jx