光学
波前
相位共轭
散射
光散射
光场
相位恢复
空间光调制器
相位调制
传输(电信)
物理
相位噪声
材料科学
计算机科学
电信
激光器
傅里叶变换
量子力学
作者
Jian Xu,Haowen Ruan,Yan Liu,Haojiang Zhou,Changhuei Yang
出处
期刊:Optics Express
[The Optical Society]
日期:2017-10-23
卷期号:25 (22): 27234-27234
被引量:48
摘要
Focusing light through scattering media has broad applications in optical imaging, manipulation and therapy. The contrast of the focus can be quantified by peak-to-background intensity ratio (PBR). Here, we theoretically and numerically show that by using a transmission matrix inversion method to achieve focusing, within a limited field of view and under a low noise condition in transmission matrix measurements, the PBR of the focus can be higher than that achieved by conventional methods such as optical phase conjugation or feedback-based wavefront shaping. Experimentally, using a phase-modulation spatial light modulator, we increase the PBR by 66% over that achieved by conventional methods based on phase conjugation. In addition, we demonstrate that, within a limited field of view and under a low noise condition in transmission matrix measurements, our matrix inversion method enables light focusing to multiple foci with greater fidelity than those of conventional methods.
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