光学
光学(聚焦)
散射
干涉测量
基础(线性代数)
贝塞尔函数
传输(电信)
物理
计算机科学
电信
数学
几何学
作者
Jiayu Zeng,Wenjing Zhao,Aiping Zhai,Wei-Bang Ji,Dong Wang
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2024-01-04
卷期号:49 (3): 698-698
被引量:3
摘要
The transmission matrix (TM) is a powerful tool for focusing light through scattering media. Here, we demonstrate a Bessel-basis TM that enables tight focusing through the scattering media and reduces the full width at half maximum of the focus by 23% on average, as compared to the normally used Hadamard-basis TM. To measure the Bessel-basis TM, we establish a common-path inter-mode interferometer (IMI), which can fully utilize the pixels of the spatial light modulator, leading to an enhancement in the peak-to-background intensity ratio (PBR) of the focus. Experimental results suggest that the Bessel-basis TM can achieve a tighter focus behind the scattering media, and the PBR of the focus obtained by the IMI is around 14.3% higher than that achieved using the normal peripheral reference interferometry.
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