Distribution characteristics of intensity and phase vortices of speckle fields produced by N-pinhole random screens

doi:10.1088/1674-1056/24/9/094202

中国物理B ›› 2015, Vol. 24 ›› Issue (9): 94202-094202.doi: 10.1088/1674-1056/24/9/094202

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Distribution characteristics of intensity and phase vortices of speckle fields produced by N-pinhole random screens

刘曼^{a b}, 程传福^b, 任晓荣^b

a School of Science, Qilu University of Technology, Jinan 250353, China;
b College of Physics and Electronics, Shandong Normal University, Jinan 250014, China

收稿日期:2014-10-22 修回日期:2015-04-02 出版日期:2015-09-05 发布日期:2015-09-05
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11404179).

Distribution characteristics of intensity and phase vortices of speckle fields produced by N-pinhole random screens

Liu Man (刘曼)^{a b}, Cheng Chuan-Fu (程传福)^b, Ren Xiao-Rong (任晓荣)^b

a School of Science, Qilu University of Technology, Jinan 250353, China;
b College of Physics and Electronics, Shandong Normal University, Jinan 250014, China

Received:2014-10-22 Revised:2015-04-02 Online:2015-09-05 Published:2015-09-05
Contact: Liu Man, Cheng Chuan-Fu E-mail:lium7879@163.com;chengchuanfu@sdnu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11404179).

摘要/Abstract

摘要：

We analyze the distribution properties of phase and phase vortices in a speckle field generated by N-pinhole random screens, and find that the phase vortex distributions show similarity and clustering in local regions. The phase patterns have a lot of sets composed of two phase vortices with opposite signs or four phase vortices which are positive and negative vortices alternately. Cases are also found where two adjacent phase vortices have the same topological charges. The density of phase vortices becomes larger with the increase of the radius of circumference and the number of pinholes on screen. Then, the relative positions of phase vortices can be adjusted by changing the radius of circumference and the number of pinholes.

关键词: speckle field, phase vortices, intensity distribution

Abstract:

Key words: speckle field, phase vortices, intensity distribution

中图分类号: (Diffraction and scattering)

42.25.Fx

42.30.Ms (Speckle and moiré patterns)

刘曼, 程传福, 任晓荣. Distribution characteristics of intensity and phase vortices of speckle fields produced by N-pinhole random screens[J]. 中国物理B, 2015, 24(9): 94202-094202.

Liu Man (刘曼), Cheng Chuan-Fu (程传福), Ren Xiao-Rong (任晓荣). Distribution characteristics of intensity and phase vortices of speckle fields produced by N-pinhole random screens[J]. Chin. Phys. B, 2015, 24(9): 94202-094202.

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Distribution characteristics of intensity and phase vortices of speckle fields produced by N-pinhole random screens

Distribution characteristics of intensity and phase vortices of speckle fields produced by N-pinhole random screens

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