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    Journals >Chinese Journal of Lasers >Volume 47 >Issue 2 >Page 207038 > Article
    • Chinese Journal of Lasers
    • Vol. 47, Issue 2, 207038 (2020)
    Light Focusing Through Scattering Medium Based on Binary Transmission Matrix
    Si Ke1、2、3、*, Tang Liming1、2, Du Jichao1、2, Wu Chenxue1、2, Xu Xiaobin3, Hu Lejia1、2, Chen Jiajia1、2, and Gong Wei3
    Author Affiliations
  • 1State Key Laboratory of Modern Optical Instrumentation, Department of Neurobiology, the First Affiliated Hospital,School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
  • 2College of Optical Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
  • 3School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
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    DOI: 10.3788/CJL202047.0207038 Cite this Article Set citation alerts
    Si Ke, Tang Liming, Du Jichao, Wu Chenxue, Xu Xiaobin, Hu Lejia, Chen Jiajia, Gong Wei. Light Focusing Through Scattering Medium Based on Binary Transmission Matrix[J]. Chinese Journal of Lasers, 2020, 47(2): 207038 Copy Citation Text show less
    Schematic of simulation system and focusing. (a) Schematic of simulation system; (b) schematic of simulation parameters; (c) scattering through scattering medium without DMD modulation; (d) focusing through scattering medium with DMD modulation
    Fig. 1. Schematic of simulation system and focusing. (a) Schematic of simulation system; (b) schematic of simulation parameters; (c) scattering through scattering medium without DMD modulation; (d) focusing through scattering medium with DMD modulation
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    Schematic of binary algorithm. (a) input and output map; (b) intensity division of mth pixel unit
    Fig. 2. Schematic of binary algorithm. (a) input and output map; (b) intensity division of mth pixel unit
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    Focusing effect of proposed algorithm. (a) Relationship between enhancement factor and number of sampling; (b) focusing effect with number of sampling of N; (c) focusing effect with number of sampling of 4N
    Fig. 3. Focusing effect of proposed algorithm. (a) Relationship between enhancement factor and number of sampling; (b) focusing effect with number of sampling of N; (c) focusing effect with number of sampling of 4N
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    Simulation results of single point focusing. (a) Speckle pattern without DMD modulation; (b) single point focusing at 5050th pixel; (c) modulation pattern loaded on DMD; (d) intensity profile of dash line in Fig. 4(b)
    Fig. 4. Simulation results of single point focusing. (a) Speckle pattern without DMD modulation; (b) single point focusing at 5050th pixel; (c) modulation pattern loaded on DMD; (d) intensity profile of dash line in Fig. 4(b)
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    Focusing results at different pixel positions. (a) 1225th pixel; (b) 1750th pixel; (c) 1775th pixel; (d) 5025th pixel; (e) 5050th pixel; (f) 5075th pixel; (g) 8425th pixel; (h) 8450th pixel; (i) 8475th pixel
    Fig. 5. Focusing results at different pixel positions. (a) 1225th pixel; (b) 1750th pixel; (c) 1775th pixel; (d) 5025th pixel; (e) 5050th pixel; (f) 5075th pixel; (g) 8425th pixel; (h) 8450th pixel; (i) 8475th pixel
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    Results of multi-point focusing. (a) Two-point focusing at 1225th and 8475th pixel; (b) two-point focusing at 1225th and 2025th pixel; (c) intensity profile of dash line in Fig.6(b)
    Fig. 6. Results of multi-point focusing. (a) Two-point focusing at 1225th and 8475th pixel; (b) two-point focusing at 1225th and 2025th pixel; (c) intensity profile of dash line in Fig.6(b)
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    Si Ke, Tang Liming, Du Jichao, Wu Chenxue, Xu Xiaobin, Hu Lejia, Chen Jiajia, Gong Wei. Light Focusing Through Scattering Medium Based on Binary Transmission Matrix[J]. Chinese Journal of Lasers, 2020, 47(2): 207038
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    Paper Information
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