太赫兹科学与电子信息学报2023，Vol.21Issue(12)：1410-1416,7.DOI:10.11805/TKYDA2023148
基于二氧化钒超材料的双窄带太赫兹吸收器
Dual-narrowband THz absorber based on vanadium dioxide metamaterial
摘要
Abstract
A metamaterial absorber based on vanadium dioxide(VO2)is presented.This structure consists of three layers including two vanadium dioxide circles,intermediate dielectric layer,and metal substrate from top to bottom.The simulated data shows that the absorber has two strong absorption peaks,at 4.96 THz and 5.64 THz respectively,and the corresponding absorption rates reach 99.1%and 98.5%.The physical mechanism of absorption is clarified by using the impedance matching theory and the electric field distribution.The effect of the structural parameters on the absorption rate is also analyzed.In addition,the proposed absorber can regulate the absorption rate flexibly,which provides a good scheme for the realization of terahertz wave regulation,filtering and other functions.Therefore,this absorber has potential applications in image processing,biological detection,and wireless communication.关键词
太赫兹/超材料/二氧化钒/吸收器Key words
THz/metamaterial/vanadium dioxide/absorber分类
通用工业技术引用本文复制引用
曹俊豪,饶志明,李超..基于二氧化钒超材料的双窄带太赫兹吸收器[J].太赫兹科学与电子信息学报,2023,21(12):1410-1416,7.基金项目
国家自然科学基金资助项目(62065008) （62065008）
