Imaging through scattering layers using a near-infrared low-spatial-coherence fiber random laser

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外文摘要：Optical memory effect-based speckle-correlated technology has been developed for reconstructing hidden objects from disordered speckle patterns,achieving imaging through scattering layers.However,the lighting efficiency and field of view of existing speckle-correlated imaging systems are limited.Here,a near-infrared low spatial coherence fiber random laser illumination method is proposed to address the above limitations.Through the utilization of random Rayleigh scattering within dispersion-shifted fibers to provide feedback,coupled with stimulated Raman scattering for amplification,a near-infrared fiber random laser exhibiting a high spectral density and extremely low spatial coherence is generated.Based on the designed fiber random laser,speckle-correlated imaging through scattering layers is achieved,with high lighting efficiency and a large imaging field of view.This work improves the performance of speckle-correlated imaging and enriches the research on imaging through scattering medium.

外文关键词：

fiber random laserspeckle-correlated imagingscattering mediumspatial coherence

作者：

史安达、王泽宇、段辰锡、王昭、张伟利

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作者单位：

School of Information and Communication Engineering,University of Electronic Science & Technology of China,Chengdu 611731,China

Yingcai Honors College,University of Electronic Science & Technology of China,Chengdu 611731,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaSichuan Science and Technology ProgramSichuan Science and Technology Program

项目编号：

62375040119740712022ZYD01082023JDRC0030

出版年：

2024

DOI：

10.1088/1674-1056/ad6420

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(10)