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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摘要
提出了基于纯相位调制的传输矩阵通用测量方法,搭建了传输矩阵测量的实验装置。分别利用单位矩阵调制和哈达玛矩阵调制方式进行了传输矩阵测量,并实现了穿透散射介质的光波聚焦。实验结果表明,基于单位矩阵测得的传输矩阵,其聚焦点光强为背景光强的19倍;而基于哈达玛矩阵测得的传输矩阵,其聚焦点光强为背景光强的16倍。
The general measurement method of transmission matrices based on phase-only modulation is proposed and the experimental setup is established for the measurement of the transmission matrices.The identity matrix modulation and the Hadamard matrix modulation are employed respectively in the measurement of the transmission matrices,and the focusing of light waves through scattering media is realized.The experimental results show that the focusing point intensity of the transmission matrix measured based on the identity matrix is 19 times the background light intensity,while the focusing point intensity of the transmission matrix measured based on the Hadamard matrix is 16 times the background light intensity.
The general measurement method of transmission matrices based on phase-only modulation is proposed and the experimental setup is established for the measurement of the transmission matrices.The identity matrix modulation and the Hadamard matrix modulation are employed respectively in the measurement of the transmission matrices,and the focusing of light waves through scattering media is realized.The experimental results show that the focusing point intensity of the transmission matrix measured based on the identity matrix is 19 times the background light intensity,while the focusing point intensity of the transmission matrix measured based on the Hadamard matrix is 16 times the background light intensity.
引文
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[2]Popoff S M,Lerosey G,Fink M,et al.Controlling light through optical disordered media:Transmission matrix approach[J].New Journal of Physics,2011,13(12):123021.
[3]Popoff S M,Lerosey G,Carminati R,et al.Measuring the transmission matrix in optics:An approach to the study and control of light propagation in disordered media[J].Physical Review Letters,2010,104(10):100601.
[4]Yu H,Hillman T R,Choi W,et al.Measuring large optical transmission matrices of disordered media[J].Physical Review Letters,2013,111(15):153902.
[5]Choi Y,Yang T D,Fang-Yen C,et al.Overcoming the diffraction limit using multiple light scattering in a highly disordered medium[J].Physical Review Letters,2011,107(2):023902.
[6]Mounaix M,Andreoli D,Defienne H,et al.Spatiotemporal coherent control of light through a multiple scattering medium with the multispectral transmission matrix[J].Physical Review Letters,2016,116(25):253901.
[7]Andreoli D,Volpe G,Popoff S,et al.Deterministic control of broadband light through a multiply scattering medium via the multispectral transmission matrix[J].Scientific Reports,2015,5:10347.
[8]Dremeau A,Liutkus A,Martina D,et al.Referenceless measurement of the transmission matrix of a highly scattering material using a DMD and phase retrieval techniques[J].Optics Express,2015,23(9):11898-11911.
[9]Yang H,Huang Y H,Gong C M,et al.Advances on techniques of breaking diffraction limitation using scattering medium[J].Chinese Optics,2014,7(1):1-25.杨虹,黄远辉,龚昌妹,等.散射介质超衍射极限技术研究进展[J].中国光学,2014,7(1):1-25.
[10]Huang Y H.Optical transmission matrix measurement of random scattering media for diffraction-limit breaking[D].Xi’an:Xidian University,2013.黄远辉.光学超衍射极限成像中随机介质传输矩阵获取方法研究[D].西安:西安电子科技大学,2013.
[11]Gong C M,Shao X P,Wu T F,et al.Focusing of random scattering light by global optimization amplitude modulation[J].Journal of Xidian University,2016,43(1):99-104.龚昌妹,邵晓鹏,吴腾飞,等.随机散射光波的全局优化调幅聚焦[J].西安电子科技大学学报,2016,43(1):99-104.