High-Contrast Gratings based Spoof Surface Plasmons

Zhuo Li, Liangliang Liu, Bingzheng Xu, Pingping Ning, Chen Chen, Jia Xu, Xinlei Chen, Changqing Gu, Quan Qing

Research output: Contribution to journalArticle

13 Scopus citations

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.

Original languageEnglish (US)
Article number21199
JournalScientific Reports
Volume6
DOIs
StatePublished - Feb 16 2016

ASJC Scopus subject areas

  • General

Cite this

Li, Z., Liu, L., Xu, B., Ning, P., Chen, C., Xu, J., Chen, X., Gu, C., & Qing, Q. (2016). High-Contrast Gratings based Spoof Surface Plasmons. Scientific Reports, 6, [21199]. https://doi.org/10.1038/srep21199