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High-Contrast Gratings based Spoof Surface Plasmons.

ABSTRACT: In this work, we explore the existence of spoof surface plasmons (SSPs) supported by deep-subwavelength high-contrast gratings (HCGs) on a perfect electric conductor plane. The dispersion relation of the HCGs-based SSPs is derived analyt- ically by combining multimode network theory with rigorous mode matching method, which has nearly the same form with and can be degenerated into that of the SSPs arising from deep-subwavelength metallic gratings (MGs). Numerical simula- tions validate the analytical dispersion relation and an effective medium approximation is also presented to obtain the same analytical dispersion formula. This work sets up a unified theoretical framework for SSPs and opens up new vistas in surface plasmon optics.

SUBMITTER: Li Z

PROVIDER: S-EPMC4754736 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature

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High-Contrast Gratings based Spoof Surface Plasmons.

Li Zhuo Z Liu Liangliang L Xu Bingzheng B Ning Pingping P Chen Chen C Xu Jia J Chen Xinlei X Gu Changqing C Qing Quan Q

Scientific reports 20160216

In this work, we explore the existence of spoof surface plasmons (SSPs) supported by deep-subwavelength high-contrast gratings (HCGs) on a perfect electric conductor plane. The dispersion relation of the HCGs-based SSPs is derived analyt- ically by combining multimode network theory with rigorous mode matching method, which has nearly the same form with and can be degenerated into that of the SSPs arising from deep-subwavelength metallic gratings (MGs). Numerical simula- tions validate the analy ...[more]

PMID: 26879637

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