Enhancing spatiotemporal focusing of light deep inside scattering media with Time-Gated Reflection Matrix

Zhipeng Yu; Huanhao Li; Tianting Zhong; Puxiang Lai

doi:10.1038/s41377-022-00858-w

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Enhancing spatiotemporal focusing of light deep inside scattering media with Time-Gated Reflection Matrix

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- Enhancing spatiotemporal focusing of light deep inside scattering media with Time-Gated Reflection Matrix
- Enhancing spatiotemporal focusing of light deep inside scattering media with Time-Gated Reflection Matrix
- Light: Science & Applications 2022年11卷第7期页码：1320-1321
- Affiliations：
  
  1.Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
  2.Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, China
  3.Photonics Research Institute, The Hong Kong Polytechnic University, Hong Kong SAR, China
- Author bio：
  
  Puxiang Lai (puxiang.lai@polyu.edu.hk)
- Funds：
- DOI：10.1038/s41377-022-00858-w
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Zhipeng Yu, Huanhao Li, Tianting Zhong, 等. Enhancing spatiotemporal focusing of light deep inside scattering media with Time-Gated Reflection Matrix[J]. Light: Science & Applications, 2022,11(7):1320-1321.

Yu, Z. P. et al. Enhancing spatiotemporal focusing of light deep inside scattering media with Time-Gated Reflection Matrix. Light: Science & Applications, 11, 1320-1321 (2022).
Zhipeng Yu, Huanhao Li, Tianting Zhong, 等. Enhancing spatiotemporal focusing of light deep inside scattering media with Time-Gated Reflection Matrix[J]. Light: Science & Applications, 2022,11(7):1320-1321. DOI： 10.1038/s41377-022-00858-w.

Yu, Z. P. et al. Enhancing spatiotemporal focusing of light deep inside scattering media with Time-Gated Reflection Matrix. Light: Science & Applications, 11, 1320-1321 (2022). DOI： 10.1038/s41377-022-00858-w.

摘要

Abstract

Time-gated reflection matrix (RM) has been successfully used for optical imaging deep inside scattering media. Recently, this method was extended to enhance the spatiotemporal focusing of light ultra-deep inside scattering media. This is achieved by calibrating the decomposition of the RM with the Tikhonov regularization parameter to convert multiply scattered photons that share the same time of flight with the singly scattered photons into singly scattered photons. Such a capability suggests a reshaping to the interaction mechanism between light and scattering media, which may benefit or inspire wide optical applications that desire enhanced spatiotemporal focusing of light at depths inside scattering media.

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