基于地表的大型视野光接收器用于增强的LiDAR系统
Hanwen Guo1, Xiangkun Zhou1, Bo Gao1
1Microsystems Technology Research Center, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
Nanophotonics (Berlin, Germany)
|August 7, 2025
概括
研究人员开发了一种用于紧型LiDAR系统的新型超表面光接收器. 这项创新显著提高了视野和信号接收,为先进的应用铺平了道路.
科学领域:
- 光学和光子学 在光学和光子学.
- 地表表面技术的技术.
- 光学工程是指光学工程.
背景情况:
- 紧型光探测和距离测量 (LiDAR) 系统在平衡视野 (FOV) 和信号接收方面面临着规模限制的挑战.
- 现有的LiDAR接收器通常具有有限的FOV,限制它们在动态环境和无人机等平台上的适用性.
- 超表面由于其子波长结构和操纵光的能力,为新型光学元件设计提供了潜力.
研究的目的:
- 为基于超表面的光接收器提出一个通用设计原则,以增强大FOV能力.
- 为了展示一个概念验证,用于紧,离轴LiDAR应用的Metasurface设备.
- 改进LiDAR系统的有效信号接收和功率增强.
主要方法:
- 一个基于超表面的光接收器是使用映射关系设计的,以获得最佳的性能.
- 使用深紫外线 (DUV) 投影步骤光刻法制造了一种直径20毫米,4区域的超表面装置.
- 该设备与直径为3毫米的雪崩光二极管 (APD) 相结合,用于性能评估.
主要成果:
- 超表面光接收器实现了±30°的大视野.
- 在940nm观察到一个显著的功率增强因子,从1.5到3倍,在940nm观察到.
- 该设备在与雪崩光二极管集成时表现出有效的性能.
结论:
- 开发的超表面光接收器为紧,高性能LiDAR系统提供了一个新的范式.
- 这项技术为需要广泛的FOV和高效的光接收的应用程序提供了增强的功能.
- 这些发现支持在无人机 (UAV) 和微型机器人等领域部署先进的LiDAR.
相关概念视频
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