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通过机械调节的混合级联元表面实现的双模式LiDAR系统

Lingyun Zhang¹, Chi Zhang², Li Zhang²

¹State Key Laboratory of Intelligent Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.

Light, science & applications

|August 25, 2025

概括

这项研究引入了一种新的双模式光检测和测距 (LiDAR) 装置,它结合了光束扫描和闪光模式. 这种创新使得可适应的3D感知具有提高的效率和紧性,适用于各种应用.

科学领域:

光学和光学
超表面
三维成像技术

背景情况:

传统的光检测和测距 (LiDAR) 系统在检测效率和精度/距离之间面临着权衡.
射线扫描激光雷达提供高精度但效率有限,而闪光激光雷达则以降低性能为代价提供高效率.
需要可适应的LiDAR系统来克服这些局限性.

研究的目的:

开发一个微型,可重新配置的双模式激光雷达装置,集成光束扫描和闪光照明.
通过使用Pancharatnam-Berry和传播阶段元表面,展示扫描和闪光模式之间的切换的新方法.
提出一个适应式的3D重建方案,适用于双模式LiDAR系统.

主要方法:

通过级的Pancharatnam-Berry和传播阶段的超表面制造小型的双模式装置.
一个可重新配置的光束形成微型执行器的集成.
发生光的偏振调节以切换光束阵列扫描和闪光照明模式.
开发一个可适应的3D重建方案,利用双模式操作.

主要成果:

该设备通过偏振控制成功切换扫描和闪光模式.
在扫描模式下,可调节的角分辨率和±35°的视野 (FoV) 通过微型执行器实现.
闪光模式在整个FOV提供了均的照明.
拟议的自适应3D重建方案证明了概念.

结论:

开发的双模式激光雷达设备具有高度适应性.
这项技术可实现更高效,更紧的3D检测系统.
超表面和微型执行器的协同作用为下一代LiDAR提供了一个有前途的方向.

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