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
Fan Meng(孟凡), Yue Zhao(赵乐), Yun-Zuo Zhang(张云佐), Lei Huo(霍磊)
Fan Meng(孟凡)1, Yue Zhao(赵乐)2, Yun-Zuo Zhang(张云佐)1, Lei Huo(霍磊)1
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.
中图分类号: (Laser ultrasonics)