Relay-projection microscopic telescopy

Wenjun Yi; Shuyue Zhu; Meicheng Fu; Nan Gu; Junli Qi; Siyu Liu; Mengjun Zhu; Ping Wang; Xin Chen; Yi Zhang; Hongyu Zhang; Yao Xu; Junyi Du; Peng Xiong; Zhaohua Dong; Luobing Dong; Qiong Liu; Xiujian Li

doi:10.1038/s41377-025-01800-6

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Relay-projection microscopic telescopy

Original Articles

- Relay-projection microscopic telescopy
- Light: Science & Applications Vol. 14, Issue 4, Pages: 1143-1155(2025)
- Affiliations：
  
  1.College of Science, National University of Defense Technology, Changsha, China
  2.Xi'an Satellite Control Center, Xi'an, China
  3.School of Information and Electronics Engineering, Hunan City University, Yiyang, China
  4.College of Electronic Science, National University of Defense Technology, Changsha, China
  5.The School of Computer Science and Technology, Xidian University, Xi'an, China
  6.Senior Department of Otolaryngology Head and Neck Surgery, the 6th Medical Center of Chinese PLA General Hospital, Chinese PLA Medical School, Beijing, China
- Author bio：
  
  Wenjun Yi (yiwenjun@nudt.edu.cn)
  Qiong Liu (joanlq@sina.com)
  Xiujian Li (xjli@nudt.edu.cn)
- Funds：
- DOI：10.1038/s41377-025-01800-6
  CLC：
- Received：16 August 2024，
  
  Revised：19 January 2025，
  
  Accepted：2025-02-06，
  
  Published Online：07 March 2025，
  
  Published：30 April 2025
- Accepted：
Scan QR Code
Yi, W. J. et al. Relay-projection microscopic telescopy. Light: Science & Applications, 14, 1143-1155 (2025).
DOI：

Yi, W. J. et al. Relay-projection microscopic telescopy. Light: Science & Applications, 14, 1143-1155 (2025). DOI： 10.1038/s41377-025-01800-6.

摘要

Abstract

The fundamental trade-off between spatial resolution and imaging distance poses a significant challenge for current imaging techniques

such as those used in modern biomedical diagnosis and remote sensing. Here

we introduce a new conceptual method for imaging dynamic amplitude-phase-mixed objects

termed relay-projection microscopic telescopy (rPMT)

which fundamentally challenges conventional light collection techniques by employing non-line-of-sight light collection through square-law relay-projection mechanisms. We successfully resolved tin

features measuring 2.76 μm

22.10 μm

and 35.08 μm for objects positioned at distances of 1019.0 mm

26.4 m

and 96.

0 m

respectively

from single-shot spatial power spectrum images captured on the relay screen; these results demonstrate that the resolution capabilities of rPMT significantly surpass the Abbe diffraction limit of the 25 mm-aperture camera lens at the respective distances

achieving resolution improvement factors of 7.9

25.4

and 58.2. The rPMT exhibits long-distance

wide-range

high-resolution imaging capabilities that exceed the diffraction limit of the camera lens and the focusing range limit

even when the objects are obscured by a scattering medium. The rPMT enables telescopic imaging from centimeters to beyond hundreds of meters with micrometer-scale resolution using simple devices

including a laser diode

a portable camera

and a diffusely reflecting whiteboard. Unlike contemporary high-resolution imaging techniques

our method does not require labeling reagents

wavefront modulation

synthetic receive aperture

or ptychography scanning

which significantly reduce the complexity of the imaging system and enhance the application practicality. This method holds particular promise for in-vivo label-free dynamic biomedical microscopic imaging diagnosis and remote surveillance of small objects.

关键词

Keywords

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