Light focusing through strongly scattering media by binary amplitude modulation

Based on the angular spectrum method and the circular Gaussian distribution（CGD） model of scattering media,we numerically simulate light focusing through strongly scattering media.A high contrast focus in the target area is produced by using feedback optimization algorithm with binary amplitude modu...

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Bibliographic Details
Published inOptoelectronics letters Vol. 11; no. 4; pp. 313 - 316
Main Author 黄惠玲 孙存志 陈子阳 蒲继雄
Format Journal Article
LanguageEnglish
Published Tianjin Tianjin University of Technology 01.07.2015
Subjects
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
二值
介质模型
优化算法
幅度调制
强散射介质
振幅调制
聚焦
高斯分布
Speckle Pattern
Optic Letter
Spatial Light Modulation
Transmission Matrix
Enhancement Factor
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Summary:Based on the angular spectrum method and the circular Gaussian distribution（CGD） model of scattering media,we numerically simulate light focusing through strongly scattering media.A high contrast focus in the target area is produced by using feedback optimization algorithm with binary amplitude modulation.It is possible to form the focusing with one focus or multiple foci at arbitrary areas.The influence of the number of square segments of spatial light modulation on the enhancement factor of intensity is discussed.Simulation results are found to be in good agreement with theoretical analysis for light refocusing.
Bibliography:focusing wavefront arbitrary circular inhomogeneous Heidelberg numerically angular modulated speckle
HUANG Hui-ling, SUN Cun-zhi, CHEN Zi-yang, PU Ji-xiong （ Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and En- gineering, Huaqiao University, Xiamen 361021, China）
12-1370/TN
Based on the angular spectrum method and the circular Gaussian distribution（CGD） model of scattering media,we numerically simulate light focusing through strongly scattering media.A high contrast focus in the target area is produced by using feedback optimization algorithm with binary amplitude modulation.It is possible to form the focusing with one focus or multiple foci at arbitrary areas.The influence of the number of square segments of spatial light modulation on the enhancement factor of intensity is discussed.Simulation results are found to be in good agreement with theoretical analysis for light refocusing.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-015-5062-6