Metasurface-based large field-of-view light receiver for enhanced LiDAR systems

IF 6.6 2区物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nanophotonics Pub Date : 2025-07-01 DOI:10.1515/nanoph-2025-0161

Hanwen Guo, Xiangkun Zhou, Bo Gao, Jianing Yang, Lingyun Zhang, Junya Wang, Zheng You

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Abstract

This paper presents a metasurface-based light receiver tailored for compact off-axis light detection and ranging (LiDAR) systems, addressing the critical challenge of simultaneously enhancing the field of view (FOV) and effective signal reception while adhering to strict size and weight limitations. A general design principle for the metasurface-based light receiver with large FOV capability is proposed, leveraging mapping relations to achieve optimal performance. As a proof of concept, a 20-mm-diameter 4-region metasurface device was designed and fabricated by deep ultraviolet (DUV) projection stepper lithography on an 8-inch fused silica wafer. The metasurface-based light receiver achieves a large FOV of ±30° and demonstrates a significant power enhancement ranging from 1.5 to 3 times at 940 nm when coupled with a 3-mm-diameter avalanche photodiode (APD). The innovation not only establishes a new paradigm for compact, high-performance LiDAR systems but also enables deployment in advanced fields such as unmanned aerial vehicles (UAVs) and miniaturized robots.

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用于增强型激光雷达系统的基于超表面的大视场光接收器

本文提出了一种基于超表面的光接收器，专为紧凑型离轴光探测和测距（LiDAR）系统量身定制，解决了同时增强视场（FOV）和有效信号接收的关键挑战，同时坚持严格的尺寸和重量限制。提出了基于超表面的大视场光接收机的一般设计原则，利用映射关系实现最优性能。作为概念验证，采用深紫外投影步进光刻技术在8英寸熔融硅片上设计并制作了直径20 mm的4区超表面器件。当与直径为3mm的雪崩光电二极管（APD）耦合时，基于超表面的光接收器实现了±30°的大视场，并在940 nm处显示出1.5至3倍的显着功率增强。这一创新不仅为紧凑、高性能的激光雷达系统建立了新的范例，而且还使其能够在无人机（uav）和小型化机器人等先进领域得到部署。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nanophotonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

13.50

自引率

6.70%

发文量

358

审稿时长

7 weeks

期刊介绍： Nanophotonics, published in collaboration with Sciencewise, is a prestigious journal that showcases recent international research results, notable advancements in the field, and innovative applications. It is regarded as one of the leading publications in the realm of nanophotonics and encompasses a range of article types including research articles, selectively invited reviews, letters, and perspectives. The journal specifically delves into the study of photon interaction with nano-structures, such as carbon nano-tubes, nano metal particles, nano crystals, semiconductor nano dots, photonic crystals, tissue, and DNA. It offers comprehensive coverage of the most up-to-date discoveries, making it an essential resource for physicists, engineers, and material scientists.