石墨烯动态调控太赫兹表面等离激元

张葆青; 冯明明; 张翼飞; 宋爱民

doi:doi:10.11805/tkyda2022163

太赫兹科学与电子信息学报, 2023, 21 (8): 965, 网络出版: 2024-01-17

石墨烯动态调控太赫兹表面等离激元

Active modulation of terahertz Surface Plasmons Polaritons with graphene

论文大纲

张葆青冯明明张翼飞 ^*宋爱民

作者单位

山东大学微电子学院，山东济南 250100

表面等离激元太赫兹石墨烯动态调控 Surface Plasmons Polaritons terahertz graphene active modulation

摘要

太赫兹表面等离激元(SPPs)是利用亚波长周期性结构在太赫兹频段模拟的具有与可见光频段表面等离激元相似的光学特性的电磁波，分为传输型和局域型 2种。本文将石墨烯引入太赫兹表面等离激元结构作为动态激励源，通过外加偏压改变石墨烯的电导率，分别实现了对传输型表面等离激元的幅度、频率、相位和对局域表面等离激元共振强度的动态调控。本文方法为表面等离激元的动态调控提供了新的思路，拓宽了表面等离激元在太赫兹频段的应用。

Abstract

Terahertz(THz) Surface Plasmons Polaritons(SPPs) can mimic optical Surface Plasmons (SPs) and obtain similar optical properties with periodic sub-wavelength structures, which typically consist of propagating SPPs and Localized Surface Plasmons(LSPs). In this work, graphene is utilized as the active stimuli to dynamically control the amplitude, frequency, and phase of SPPs and reconfigure the resonant modes of LSPs at various bias voltages. Such design provides new solutions for active control of SPPs and LSPs at THz frequencies.

参考文献

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张葆青, 冯明明, 张翼飞, 宋爱民. 石墨烯动态调控太赫兹表面等离激元[J]. 太赫兹科学与电子信息学报, 2023, 21(8): 965. ZHANG Baoqing, FENG Mingming, ZHANG Yifei, SONG Aimin. Active modulation of terahertz Surface Plasmons Polaritons with graphene[J]. Journal of terahertz science and electronic information technology, 2023, 21(8): 965.

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