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Manipulating optical tamm state in the terahertz frequency range with graphene

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摘要

Optical Tamm state (OTS), which exists generally at the interface between metal and dielectric Bragg mirror, has been studied extensively in the visible and near infrared spectra. Nevertheless, OTS in the terahertz region is normally received far less attention. In this paper, we demonstrate the physical mechanism of OTS at the interface between graphene and dielectric Bragg mirror in the terahertz frequency by applying the transfer matrix method and dispersion characteristics. Based on such mechanism, we propose an efficient method that can precisely generate and control OTS at a desired angle and frequency. Moreover, we show that the OTS is dependent on the optical conductivity of graphene, making the graphene-dielectric Bragg mirror to be a good candidate for dynamic tunable OTS device in the THz frequency range.

Newport宣传-MKS新实验室计划
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作者单位:

    Hunan Normal University
    Hunan Normal University
    Shenzhen University
    Shenzhen University
    Hunan Normal University
    Shenzhen University
    Shenzhen University

引用该论文

Jiang Leyong,Tang Jiao,Wang Qingkai,Wu Yuexiang,Zheng Zhiwei,xiang yuanjiang,Dai Xiaoyu. Manipulating optical tamm state in the terahertz frequency range with graphene[J].Chinese Optics Letters,2019,17(2):02.