摘要
全金属超表面是由亚波长金属单元所组成的结构阵列,其在调控电磁波相位方面展现出了效率高、带宽大等特点,并且相较于金属-介质混合型超表面,全金属超表面具有优良的热学和机械性能,如耐高温、强度大、延展性好等,这使得其可以应用于高温高压等极端复杂环境中。本文对近年来全金属超表面取得的研究进展进行了简要的归纳总结,主要介绍了其在构建高效、多功能平面光学器件以及多频谱电磁隐身中的应用,并对其未来的发展方向进行了展望。
All-metal metasurfaces are structural arrays composed of sub-wavelength metal units,which exhibit high efficiency and large bandwidth in phase manipulation of electromagnetic waves.Compared with metal-dielectric hybrid metasurfaces,all-metal metasurfaces have excellent thermal and mechanical properties,such as hightemperature resistance,high strength,and good ductility,which enable them to be applied in extremely complex environments such as high temperature and high pressure.In this paper,we briefly summarize the recent research progress based on all-metal metasurfaces.We mainly introduce their applications in the construction of highly efficient and multi-functional planar optical devices as well as multi-spectrum electromagnetic stealth,and provide an outlook of the future direction of its development.
作者
刘博
谢鑫
甘雪涛
赵建林
Liu Bo;Xie Xin;Gan Xuetao;Zhao Jianlin(Key Laboratory of Light Field Manipulation and Information Acquisition,Ministry of Industry and Information Technology,and Shaanxi Key Laboratory of Optical Information Technology,School of Physical Science and Technology,Northwestern Polytechnical University,Xi’an,Shaanxi 710129,China)
出处
《光电工程》
CAS
CSCD
北大核心
2023年第9期30-41,共12页
Opto-Electronic Engineering
基金
国家自然科学基金项目(62105263)
博士后创新人才支持计划(BX20220388)。
关键词
全金属超表面
几何相位
电磁隐身
高效率
all-metal metasurface
geometric phase
electromagnetic stealth
high efficiency
