摘要
超表面器件的亚波长单元结构能够与光产生强烈的相互作用。通过对超原子的优化设计,能够对光场的各个参量进行多维度调控,为包括全息显示在内的众多应用光学领域带来全新的解决思路与方案。针对全息显示中核心光电调制器件能力有限的问题,发挥超表面器件超强的光场控制能力,利用多维度的复用调控,实现对信息通道数量的扩展,提升显示质量与效果。随着对超表面光场调控机制与复用技术的深入研究,超表面自身与相关应用领域都得到了长足发展。本文围绕超表面进行论述,着重介绍本课题组在多维度超表面的光场调控及全息显示中的研究进展。
Significance Metasurfaces are two-dimensional artificial engineered optical elements composed of subwavelength metaatoms that have highly flexible design freedom.Therefore,metasurfaces have exhibited unprecedented electromagnetic modulations and performance beyond nature materials,opening up new possibilities for compact and versatile wavefront engineering.As a result,many novel,efficient,and versatile devices are emerging,including polarized elements,beam generators,and surface wave modulators,leading to the refinement of intelligent devices and compact integrated systems.Furthermore,cutting-edge technologies,including novel displays,virtual reality,augmented reality,optical anticounterfeiting,and information encryption and storage,are expected to be empowered by this fantastic optical platform.With the advent of the metaverse,more vivid display technologies are required.Computer-generated holography provides efficient solutions for whole wavefront reconstruction and is envisioned as one of the most promising display technologies.By providing depth cues required by human eyes,holography can bring an immersive and realistic visual experience.Unlike conventional optical holography,which has limited functions,metasurface holography features subwavelength modulation units,versatile multiplexed capacities,and high spatial bandwidth products.The combination of metasurface and holography enables the development of compact and lightweight holographic displays,cameras,and sensors with a wide range of practical applications in science and industry.We expound on the advance of metasurfaces and introduce our research group's progress in multi-dimensional light field manipulation using metasurfaces and holographic displays.Progress The use of metasurfaces to achieve multi-dimensional modulations of optical field amplitude,polarization state,phase,and frequency is currently a hot direction in metasurface research.Our research group has conducted in-depth research on polarization modulation,novel beam generation,optical detect
作者
李昕
张时飞
张晓彤
杨静育
郑龙昊
黄玲玲
王涌天
Li Xin;Zhang Shifei;Zhang Xiaotong;Yang Jingyu;Zheng Longhao;Huang Lingling;Wang Yongtian(Beijing Engineering Research Center of Mixed Reality and Advanced Display,School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China;Key Laboratory of Photoelectronic Imaging Technology and System,Ministry of Education,School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China;Key Laboratory of Photonics Information Technology,Ministry of Industry and Information Technology,School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2023年第15期346-361,共16页
Acta Optica Sinica
基金
国家自然科学基金(U21A20140,92050117)
北京市卓越青年科学家项目(BJJWZYJH01201910007022)。
关键词
超表面
光场调控
多维度
全息显示
metasurface
light field manipulation
multiple dimensions
holographic display
