强激光与粒子束2013，Vol.25Issue(9)：2324-2328,5.DOI:10.3788/HPLPB20132509.2324
太赫兹频段开口环谐振器的可调谐振模式转换
Tunable resonant mode switch of split-ring resonators in terahertz regime
摘要
Abstract
An optically tunable split-ring resonator (SRR) has been designed on silicon substrate.In the terahertz regime,the sample's tunable dual-resonant properties have been obtained through modulation of the conductivity of silicon substrate.We put gallium arsenide (GaAs) into the gap of SRR,and find that the resonant structure of SRR can be changed by adjusting the conductivity of GaAs.Along with the increase of the conductivity of GaAs,the SRR switches the resonance frequency from dual-band LC and dipolar resonance mode to single-band closed-ring mode.Without destroying the SRR's physical structure,the method of changing the conductivity of semiconductor can switch resonant mode and can be implemented in terahertz devices to achieve additional functionalities.关键词
开口环谐振器/太赫兹/透射/超材料Key words
split-ring resonator/ terahertz/ transmission/ metamaterials分类
数理科学引用本文复制引用
曹小龙,姚建铨,袁偲,赵晓蕾,钟凯..太赫兹频段开口环谐振器的可调谐振模式转换[J].强激光与粒子束,2013,25(9):2324-2328,5.基金项目
Supported by National Natural Science Foundation of China(61271066) （61271066）
