首页|Actively tunable electromagnetically induced transpar-ency in hybrid Dirac-VO2 metamaterials
Actively tunable electromagnetically induced transpar-ency in hybrid Dirac-VO2 metamaterials
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
In this paper,we present a metamaterial structure of Dirac and vanadium dioxide(VO2)and investigate its optical properties using the finite-difference time-domain(FDTD)technique.Using the phase transition feature of VO2,the design can realize active tuning of the plasmon induced transparency(PIT)effect at terahertz frequency,thereby con-verting from a single PIT to a double-PIT.When VO2 is in the insulating state,the structure is symmetric to obtain a single-band PIT effect.When VO2 is in the metallic state,the structure turns asymmetric to realize a dual-band PIT ef-fect.This design provides a reference direction for the design of actively tunable metamaterials.Additionally,it is dis-covered that the transparent window's resonant frequency and the Fermi level in this structure have a somewhat linear relationship.In addition,the structure achieves superior refractive index sensitivity in the terahertz band,surpassing 1 THz/RIU.Consequently,the design exhibits encouraging potential for application in refractive index sensors and op-tical switches.
DI Ke、XIE Meng、XIA Huarong、CHENG Anyu、LIU Yu、DU Jiajia
展开 >
Department of Optoelectronic Engineering,Chongqing University of Post and Telecommunications,Chongqing 400065,China
Chongqing Key Laboratory of Autonomous Navigation and Microsystem,Chongqing University of Posts and Tele-communications,Chongqing 400065,China
Department of Automation,Chongqing University of Post and Telecommunications,Chongqing 400065,China
NETL
NSTL
万方数据
