中国物理B ›› 2019, Vol. 28 ›› Issue (5): 57801-057801.doi: 10.1088/1674-1056/28/5/057801

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Tuning the intensity statistics of random speckle patterns

Fan Meng(孟凡), Yue Zhao(赵乐), Yun-Zuo Zhang(张云佐), Lei Huo(霍磊)   

  1. 1 School of Information Science and Technology, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
    2 Department of Gastroenterology and Hepatology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
  • 收稿日期:2018-12-04 修回日期:2019-02-18 出版日期:2019-05-05 发布日期:2019-05-05
  • 通讯作者: Fan Meng E-mail:mengfan3426@126.com
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 61702347), the Natural Science Foundation of Hebei Province, China (Grant No. F2017210161), and Education Department of Hebei Province, China (Grant No. QN2017132).

Tuning the intensity statistics of random speckle patterns

Fan Meng(孟凡)1, Yue Zhao(赵乐)2, Yun-Zuo Zhang(张云佐)1, Lei Huo(霍磊)1   

  1. 1 School of Information Science and Technology, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
    2 Department of Gastroenterology and Hepatology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
  • Received:2018-12-04 Revised:2019-02-18 Online:2019-05-05 Published:2019-05-05
  • Contact: Fan Meng E-mail:mengfan3426@126.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 61702347), the Natural Science Foundation of Hebei Province, China (Grant No. F2017210161), and Education Department of Hebei Province, China (Grant No. QN2017132).

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摘要：

Speckle patterns are a fundamental tool in a variety of physical and optical applications. Here, we investigate a method of precisely tuning the intensity statistics of random speckle patterns into a desirable pattern that possesses the same spatial correlation length and similar statistics distribution. This tuning mechanism relies on the derivation of the transform function and transmission matrix, which achieves different contrasts while maintaining the same average value or energy level. The statistics properties of the generated speckle patterns are further investigated by analyzing the standard deviation under different fitting parameters. Precisely tuning the intensity statistics of random speckle patterns could be useful for both fundamental research and practical applications, such as microscopy, imaging, and optical manipulation.

关键词: random speckle pattern, intensity statistics, local intensity transformation, optical manipulation

Abstract:

Speckle patterns are a fundamental tool in a variety of physical and optical applications. Here, we investigate a method of precisely tuning the intensity statistics of random speckle patterns into a desirable pattern that possesses the same spatial correlation length and similar statistics distribution. This tuning mechanism relies on the derivation of the transform function and transmission matrix, which achieves different contrasts while maintaining the same average value or energy level. The statistics properties of the generated speckle patterns are further investigated by analyzing the standard deviation under different fitting parameters. Precisely tuning the intensity statistics of random speckle patterns could be useful for both fundamental research and practical applications, such as microscopy, imaging, and optical manipulation.

Key words: random speckle pattern, intensity statistics, local intensity transformation, optical manipulation

中图分类号:  (Laser ultrasonics)

  • 78.20.hc
78.20.Bh (Theory, models, and numerical simulation) 78.20.Ek (Optical activity) 78.68.+m (Optical properties of surfaces)