An iterative phase imaging method based on nonlinear hot image

Hongchang Wang; Zhaoyang Jiao; Mingying Sun; Cheng Liu; Jianqiang Zhu

doi:10.1117/12.2617690

15 February 2022 An iterative phase imaging method based on nonlinear hot image

Hongchang Wang, Zhaoyang Jiao, Mingying Sun, Cheng Liu, Jianqiang Zhu

Proceedings Volume 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021); 121665U (2022) https://doi.org/10.1117/12.2617690
Event: Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 2021, Hong Kong, Hong Kong

Abstract

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.

Citation Download Citation

Hongchang Wang, Zhaoyang Jiao, Mingying Sun, Cheng Liu, and Jianqiang Zhu "An iterative phase imaging method based on nonlinear hot image", Proc. SPIE 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 121665U (15 February 2022); https://doi.org/10.1117/12.2617690

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