Harnessing Geometric Phase Metasurfaces to Double the Field of View in Polarized Structured Light Projection for Depth Sensing

IF 2.1 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Photonics Journal Pub Date : 2024-07-16 DOI:10.1109/JPHOT.2024.3429348

Chia-Hsun Chang;Wen-Cheng Hsu;Chih-Ting Chang;You-Chia Chang;Chi-Wai Chow;Hsin-Chieh Yu;Yao-Wei Huang;Gong-Ru Lin;Yu-Heng Hong;Hao-Chung Kuo

引用次数: 0

Abstract

Herein, a lucid meta-holographic approach leveraging geometric phase metasurfaces and photonic crystal surface-emitting lasers is presented. Such a straightforward technique inherently enables polarized structured light projection with opposite circular polarization states, effectively doubling the field of view for depth sensing applications. Furthermore, the innate polarization state of projected light provides enhanced resistance to environmental interference. To demonstrate the practical utility of this method, an integrated depth sensing system based on the geometric phase meta-hologram has been developed and successfully detects targets at an operating distance of 75 cm, paving the way for advanced 3D sensing applications in various fields.

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利用几何相位元曲面将用于深度感应的偏振结构光投影视场扩大一倍

本文介绍了一种利用几何相位元曲面和光子晶体表面发射激光器的清晰元全息方法。这种简单直接的技术本身就能实现具有相反圆偏振态的偏振结构光投射，从而有效地将深度传感应用的视场增加一倍。此外，投射光的固有偏振态还增强了抗环境干扰能力。为了证明这种方法的实用性，我们开发了基于几何相位元全息图的集成深度传感系统，并成功探测到 75 厘米工作距离内的目标，为各领域的先进 3D 传感应用铺平了道路。

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

IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.