摘要
太赫兹是电磁波研究中的前沿热点之一,在通信、雷达、生物化学检测等方面有巨大的应用前景.人工电磁材料,特别是超表面的出现和发展,为太赫兹的高效波前控制提供了新的思路和方法.从太赫兹电磁场空间分布的角度出发,阐述了目前超表面在太赫兹波段波前调控的相关工作和方法,对比和讨论了太赫兹远场和近场波前调控的多类应用场景和调控方法,对太赫兹超表面波前调控的发展前景进行了展望,为研究太赫兹波前调控提供了新思路.
Terahertz,one of the cutting-edge research hotspots in electromagnetic waves,shows enormous application prospects in communication,radar,and biochemical detection and so on.The emergence and development of artificial electromagnetic materials,especially metasurface,provide a new avenue for efficient wavefront control at terahertz frequency.We elaborate on the relevant works of terahertz metasurface for wavefront control from the perspective of the spatial distribution of the terahertz electromagnetic field.We discuss various design details and application scenarios of terahertz far-field and near-field wavefront control and provide the development prospects of terahertz metasurface wavefront control in the future,which provide new ideas for the study of terahertz wavefront control.
作者
张莹
巴灵丽
阳权龙
韩家广
Zhang Ying;Ba Lingli;Yang Quanlong;Han Jiaguang(Institute of Physics and Electronic Information,Yunnan Normal University,Kunming 650500,Yunnan,China;School of Physics and Electronics,Central South University,Changsha 417100,Hunan,China;College of Precision Instrument and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China;School of Optoelectronic Engineering,Guilin University of Electronic Technology,Guilin 541004,Guangxi,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2023年第18期54-71,共18页
Laser & Optoelectronics Progress
基金
国家自然科学基金(61905207,61935015,62205380)
云南省基础研究计划(202301AT070075,202001AU070063)。
关键词
太赫兹
超表面
波前调控
表面波
terahertz
metasurface
wavefront control
surface wave
