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Light focusing through strongly scattering media by binary amplitude modulation

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Abstract

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.

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Authors and Affiliations

  1. Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021, China

    Hui-ling Huang  (黄惠玲), Cun-zhi Sun  (孙存志), Zi-yang Chen  (陈子阳) & Ji-xiong Pu  (蒲继雄)

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  1. Hui-ling Huang  (黄惠玲)
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  2. Cun-zhi Sun  (孙存志)
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  3. Zi-yang Chen  (陈子阳)
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  4. Ji-xiong Pu  (蒲继雄)
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Corresponding author

Correspondence to Zi-yang Chen  (陈子阳).

Additional information

This work has been supported by the National Natural Science Foundation of China (Nos.61178015 and 11304104).

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Huang, Hl., Sun, Cz., Chen, Zy. et al. Light focusing through strongly scattering media by binary amplitude modulation. Optoelectron. Lett. 11, 313–316 (2015). https://doi.org/10.1007/s11801-015-5062-6

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  • DOI: https://doi.org/10.1007/s11801-015-5062-6

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