Acta Physica Sinica, Volume. 69, Issue 1, 010201-1(2020)
Fig. 1. (a) A schematic diagram of metasurface consisting of silver grating, alumina dielectric layer and silver film, in which the thickness of silver film, the period and thickness of silver grating are fixed at
Fig. 2. (a) A schematic diagram of the structure of a Tamm plasmon microcavity consisting of metasurface-dielectric spacer-DBR. DBR consists of 8 pairs of silica and titanium dioxide multilayer dielectric films, in which the refractive index of silica is
Fig. 3. (a) The variation of Tamm plasmon mode wavelength with the thickness of dielectric spacer
Fig. 4. (a) and (b) are the reflection and absorption spectra of the conventional metal film-dielectric spacer-DBR structure and the metasurface-dielectric spacer-DBR structure with resonant wavelength at 620 nm, respectively; (c) and (d) electric field distributions of Tamm plasmon modes supported by metasurface and conventional Tamm plasmon microcavities, respectively. On the left is a structural sketch. The horizontal dashed line represents the position of the two-dimensional exciton material in the structure; (e) and (f) are the reflection and absorption spectra of two kinds of Tamm plasmon microcavities with two-dimensional exciton materials.(a)和(b)分别为共振波长位于620 nm的常规金属薄膜-介质间隔层-DBR结构和超表面-介质间隔层-DBR结构的反射谱和吸收谱; (c)和(d)分别为有超表面的和常规的Tamm等离激元微腔结构所支持的Tamm等离激元模式的电场分布图. 左侧为结构示意图, 水平虚线代表二维激子材料在结构中放置的位置; (e)和(f)分别为两种Tamm等离激元微腔中加入二维激子材料后的反射谱和吸收谱
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Han Wu, Jing-Yu Wu, Zhuo Chen.
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Received: Aug. 13, 2019
Accepted: --
Published Online: Nov. 4, 2020
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