光学学报, 2018, 38 (1): 0129001, 网络出版: 2018-08-31
基于纯相位调制的散射介质传输矩阵测量与光波聚焦 
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Measurement and Light Focusing by Transmission Matrices of Scattering Media Based on Phase-Only Modulation
图 & 表
图 1. 传输矩阵测量实验装置示意图
Fig. 1. Diagram of experimental devices for measurement of transmission matrices
图 2. 传输矩阵测量实验装置照片
Fig. 2. Photograph of experimental devices for measurement of transmission matrices
图 3. 单位矩阵调制模式。(a)输入调制模式; (b) α=0; (c) α=π/2; (d) α=π时采集的图像
Fig. 3. Identity matrix modulation mode. (a) Input modulation mode; images acquired when; (b) α=0; (c) α=π/2; (d) α=π
图 4. 哈达玛矩阵调制模式。(a)输入调制模式; (b) α=0; (c) α=π/2; (d) α=π时采集的图像
Fig. 4. Hadamard matrix modulation mode. (a) Input modulation mode; images acquired when; (b) α=0; (c) α=π/2; (d) α=π
图 5. 单位矩阵调制模式下测得的传输矩阵。(a)模值信息;(b)相位信息
Fig. 5. Tranmission matrices measured under identity matrix modulation mode. (a) Amplitude information; (b) phase information
图 6. 哈达玛矩阵调制模式下测得的传输矩阵。(a)模值信息;(b)相位信息
Fig. 6. Tranmission matrices measured under Hadamard matrix modulation mode. (a) Amplitude information; (b) phase information
图 7. 不同像素坐标下,利用单位矩阵调制模式测得的传输矩阵的聚焦相位共轭波的输入相位。(a) (20,20); (b) (80,20); (c) (50,50); (d) (20,80); (e) (80,80)
Fig. 7. Input phase of focus phase conjugate wave of transmission matrix measured under identity matrix modulation mode for different pixel coordinates. (a) (20,20); (b) (80,20); (c) (50,50); (d) (20,80); (e) (80,80)
图 8. 不同像素坐标下,利用哈达玛矩阵调制模式测得的传输矩阵的聚焦相位共轭波的输入相位。(a) (20,20); (b) (80,20); (c) (50,50); (d) (20,80); (e) (80,80)
Fig. 8. Input phase of focus phase conjugate wave of transmission matrix measured under Hadamard matrix modulation mode for different pixel coordinates. (a) (20,20); (b) (80,20); (c) (50,50); (d) (20,80); (e) (80,80)
图 9. 基于单位矩阵调制测得的传输矩阵在不同位置的聚焦结果。(a)未调制时散斑; (b) (20,20); (c) (80,20); (d) (50,50); (e) (20,80); (f) (80,80)
Fig. 9. Focusing results of transmission matrices at different positions based on identity matrix modulation. (a) Speckle pattern without modulation; (b) pixel coordinate of (20,20); (c) pixel coordinate of (80,20); (d) pixel coordinate of (50,50); (e) pixel coordinate of (20,80); (f) pixel coordinate of (80,80)
图 10. 基于哈达玛矩阵调制测得的传输矩阵在不同位置的聚焦结果。(a)未调制时散斑; (b)像素坐标为(20,20); (c)像素坐标为(80, 20); (d)像素坐标为(50,50); (e)像素坐标为(20,80); (f)像素坐标为(80,80)
Fig. 10. Focusing results of transmission matrices at different positions based on Hadamard matrix modulation. (a) Speckle pattern without modulation; (b) pixel coordinate of (20,20); (c) pixel coordinate of (80,20); (d) pixel coordinate of (50,50); (e) pixel coordinate of (20,80); (f) pixel coordinate of (80,80)
表 1散射介质聚焦效果
Table1. Focusing performance of scattering media
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赵明, 赵美晶, 孙程伟, 许文海. 基于纯相位调制的散射介质传输矩阵测量与光波聚焦[J]. 光学学报, 2018, 38(1): 0129001. Ming Zhao, Meijing Zhao, Chengwei Sun, Wenhai Xu. Measurement and Light Focusing by Transmission Matrices of Scattering Media Based on Phase-Only Modulation[J]. Acta Optica Sinica, 2018, 38(1): 0129001.
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