Depth sensing with metasurface and PCSEL integration

Wen Cheng Hsu, Chia Hsun Chang, Yu Heng Hong, Hao Chung Kuo, Yao Wei Huang*

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

We present a novel depth sensing system applying metasurface holograms and photonic crystal surface-emitting lasers (PCSELs). Our lens-free, single-shot system projects 9,500 infrared dots in a 0th order of holographic image from a compact ~3002 μm2 sample area, offering a wide 56.7° field-of-view (FOV) with low power consumption. Our metasurface area is 55 times smaller than that of diffractive optical elements (DOEs) in commercial dot projectors. And our PCSEL has up to 10 times less power consumption than that of vertical-cavity surface-emitting laser (VCSEL) array in commercial dot projectors. The GaAs-based metasurface hologram and simple optical architecture make it lighter and more energy-efficient, suitable for wearable devices. This technology overcomes limitations of bulky dot projectors, paving the way for integration into compact wearable devices.

原文English
主出版物標題Plasmonics
主出版物子標題Design, Materials, Fabrication, Characterization, and Applications XXI
編輯Takuo Tanaka, Yu-Jung Lu
發行者SPIE
ISBN(電子)9781510665101
DOIs
出版狀態Published - 2023
事件Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI 2023 - San Diego, United States
持續時間: 20 8月 202324 8月 2023

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
12648
ISSN(列印)0277-786X
ISSN(電子)1996-756X

Conference

ConferencePlasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI 2023
國家/地區United States
城市San Diego
期間20/08/2324/08/23

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