A dual-mode LiDAR system enabled by mechanically tunable hybrid cascaded metasurfaces

Lingyun Zhang; Chi Zhang; Li Zhang; Jianing Yang; Wei Bian; Rui You; Xiaoli Jing; Fei Xing; Zheng You; Xiaoguang Zhao

doi:10.1038/s41377-025-01999-4

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A dual-mode LiDAR system enabled by mechanically tunable hybrid cascaded metasurfaces

Original Articles

- A dual-mode LiDAR system enabled by mechanically tunable hybrid cascaded metasurfaces
- Light: Science & Applications Vol. 14, Issue 10, Pages: 3082-3091(2025)
- Affiliations：
  
  1.State Key Laboratory of Intelligent Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  2.Department of Precision Instrument, Tsinghua University, Beijing 100084, China
  3.Laboratory of Intelligent Microsystems, Beijing Information Science and Technology University, Beijing 100192, China
  4.State Key Laboratory of Precision Measurement Technology and Instrument, Tsinghua University, Beijing 100084, China
  5.Beijing Advanced Innovation Center for Integrated Circuits, Tsinghua University, Beijing 100084, China
- Author bio：
  
  Xiaoli Jing (jingxiaoli@bistu.edu.cn)
  Fei Xing (xingfei@mail.tsinghua.edu.cn)
  Xiaoguang Zhao (zhaoxg@mail.tsinghua.edu.cn)
- Funds：
- DOI：10.1038/s41377-025-01999-4
  CLC：
- Received：17 March 2025，
  
  Revised：2025-07-29，
  
  Accepted：01 August 2025，
  
  Published Online：25 August 2025，
  
  Published：31 October 2025
- Accepted：
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Zhang, L. Y. et al. A dual-mode LiDAR system enabled by mechanically tunable hybrid cascaded metasurfaces. Light: Science & Applications, 14, 3082-3091 (2025).
DOI：

Zhang, L. Y. et al. A dual-mode LiDAR system enabled by mechanically tunable hybrid cascaded metasurfaces. Light: Science & Applications, 14, 3082-3091 (2025). DOI： 10.1038/s41377-025-01999-4.

摘要

Abstract

Light detection and ranging (LiDAR) is widely used for active three-dimensional (3D) perception. Beam scanning LiDAR provides high accuracy and long detection range with limited detection efficiency

while flash LiDAR can achieve high-efficiency detection through the snapshot approach at the expense of reduced accuracy and range. With the synergy of these distinct detection approaches

we develop a miniaturized dual-mode

reconfigurable beam forming device by cascading Pancharatnam-Berry phase and propagation phase metasurfaces

integrated with a micro-actuator. By modulating incident light polarization

we can switch the output beam of the device between the beam array scanning mode and flash illuminating mode. In the scanning mode

the device demonstrates a continuously tunable angular resolution and a ± 35° field of view (FoV) through driving the micro-actuator to achieve the lateral translation of ±100 μm. In the flash mode

uniform illumination across the entire FoV is achieved. As a proof of concept

we propose an adaptive 3D reconstruction scheme that leverages the device’s capability to switch operation modes and adjust detection resolution. Together

the proposed device and the detection scheme constitute a dual-mode LiDAR system

demonstrating high adaptability to diverse environments and catalyze the applications of more efficient and compact 3D detection systems.

关键词

Keywords

references

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