人工电磁超材料的电磁波调控特性  

The characteristics of electromagnetic waves manipulation on metamaterial

作　　者：金飚兵[1] 冯一军[1] 伍瑞新[1] 

机构地区：[1]南京大学电子科学与工程学院,南京210093

出　　处：《南京大学学报（自然科学版）》2014年第3期235-253,共19页Journal of Nanjing University（Natural Science）

基　　金：国家自然科学基金(60990320;60801001;61101011;61371035;61071007;61271080);教育部科研重大项目(313029)

摘　　要：人工电磁超材料具有自然界材料所不具备的电磁参数,并且拥有可设计性和可灵活调节性质,可实现对电磁波传播性能进行新的调控,是近年来的研究热点.本文介绍了一系列运用人工电磁超材料调控电磁波传播的功能器件,包括非对称电磁波传输器件、可调节电磁波吸波结构、电磁波极化调制器件,磁性光子晶体、磁性左手材料和基于超导薄膜的太赫兹人工电磁超材料,这些器件运用人工超材料的特殊物理特性和参数可设计性,具有全新的功能和优势,有效提高了对电磁波的调控能力.Metamaterial which usually possesses material constitutive parameters not obtained with natural material becomes a hot research topic recently.Its designabilty and flexible tunability of the electromagnetic（EM）properties can be utilized to manipulate EM wave propagation.In this paper,we propose a variety of functional materials and devices that could manipulate the EM waves through metamaterials,including device that enables asymmetric EM wave propagation,tunable EM wave absorber,EM wave polarization modulator,magnetic photonic crystal,magnetic left-handed materials as well as the terahertz metamaterials based on superconductor thin films.Due to their specific and designable characteristics,these devices could have novel functionality and superior performances,enhancing the ability of EM wave manipulation.

关 键 词：电磁超材料 调控 磁性光子晶体 磁性左手材料 超导太赫兹人工电磁超材料 

分 类 号：TN011[电子电信—物理电子学]