An iterative phase imaging method based on nonlinear hot image

被引：0

作者：

Wang, Hongchang ^{[1
,2
]}

Jiao, Zhaoyang ^{[1
,2
]}

Sun, Mingying ^{[1
,2
]}

Liu, Cheng ^{[1
,2
]}

Zhu, Jianqiang ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab High Power Laser & Phys, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, 19A Yuquan Rd, Beijing 100049, Peoples R China

来源：

SEVENTH ASIA PACIFIC CONFERENCE ON OPTICS MANUFACTURE (APCOM 2021) | 2022年 / 12166卷

基金：

中国国家自然科学基金; 上海市自然科学基金;

关键词：

Phase imaging; High power laser; Hot image; Calculation imaging; Nonlinear optics; WAVE-FRONT RECONSTRUCTION; RETRIEVAL;

D O I：

10.1117/12.2617690

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phase imaging is important in biomedical, astronomy, defect detection, wavefront sensing and so on. Relative to amplitude, phase carries more information and is more difficult to detect. Most of traditional phase imaging methods are based on linear transmission, which high frequency information is severely lost. This greatly affects the resolution and contrast of imaging. Here we demonstrate an iterative phase imaging method based on nonlinear hot image. Hot image is a nonlinear holographic phenomenon due to the Kerr effect. It can transform weak phase to strong amplitude. The nonlinear feedback of hot image improves the response to high frequency information thus improves the imaging resolution. This method provides new directions to precise phase imaging.

引用

页数：5

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