Electrically tunable optical metasurfaces  

作　　者：Fei Ding Chao Meng Sergey I.Bozhevolnyi 

机构地区：[1]Centre for Nano Optics,University of Southern Denmark,Odense,Denmark

出　　处：《Photonics Insights》2024年第3期210-262,共53页光子学评论（英文）

基　　金：supported by the Independent Research Fund Denmark(No.1134-00010B);Villum Fonden(award in Technical and Natural Sciences 2019,Nos.37372 and 50343).

摘　　要：Optical metasurfaces have emerged as a groundbreaking technology in photonics,offering unparalleled control over light-matter interactions at the subwavelength scale with ultrathin surface nanostructures and thereby giving birth to flat optics.While most reported optical metasurfaces are static,featuring well-defined optical responses determined by their compositions and configurations set during fabrication,dynamic optical metasurfaces with reconfigurable functionalities by applying thermal,electrical,or optical stimuli have become increasingly more in demand and moved to the forefront of research and development.Among various types of dynamically controlled metasurfaces,electrically tunable optical metasurfaces have shown great promise due to their fast response time,low power consumption,and compatibility with existing electronic control systems,offering unique possibilities for dynamic tunability of light–matter interactions via electrical modulation.Here we provide a comprehensive overview of the state-of-the-art design methodologies and technologies explored in this rapidly evolving field.Our work delves into the fundamental principles of electrical modulation,various materials and mechanisms enabling tunability,and representative applications for active light-field manipulation,including optical amplitude and phase modulators,tunable polarization optics and wavelength filters,and dynamic waveshaping optics,including holograms and displays.The review terminates with our perspectives on the future development of electrically triggered optical metasurfaces.

关 键 词：optical metasurfaces electrical modulation electro-optic materials micro-electromechanical and nanoelectromechanical systems 

分 类 号：TH703[机械工程—仪器科学与技术]