Recent advances in optical dynamic meta-holography
光学动态元全息术的最新进展
光学動的メタホログラフィーの最近の進歩
광학 동적 메타 홀로그래피의 최근 발전
Avances recientes en metaholografía óptica dinámica
Avancées récentes en méta-holographie optique dynamique
Последние достижения в оптической динамической мета-голографии
Hui Gao 高辉 ¹, Xuhao Fan 范旭浩 ¹, Wei Xiong 熊伟 ¹, Minghui Hong 洪明辉 ²
¹ Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
中国 武汉 华中科技大学光学与电子信息学院 武汉光电国家实验室
² Department of Electrical and Computer Engineering, National University of Singapore, Engineering Drive 3, Singapore 117576, Singapore
Holography, with the capability of recording and reconstructing wavefronts of light, has emerged as an ideal approach for future deep-immersive naked-eye display. However, the shortcomings (e.g., small field of view, twin imaging, multiple orders of diffraction) of traditional dynamic holographic devices bring many challenges to their practical applications.
Metasurfaces, planar artificial materials composed of subwavelength unit cells, have shown great potential in light field manipulation, which is useful for overcoming these drawbacks. Here, we review recent progress in the field of dynamic metasurface holography, from realization methods to design strategies, mainly including typical research works on dynamic meta-holography based on tunable metasurfaces and multiplexed metasurfaces.
Emerging applications of dynamic meta-holography have been found in 3D display, optical storage, optical encryption, and optical information processing, which may accelerate the development of light field manipulation and micro/nanofabrication with higher dimensions. A number of potential applications and possible development paths are also discussed at the end.
