Surface plasmon-like modes on structured perfectly conducting surfaces

Yung Chiang Lan, Ruey Lin Chern

研究成果: Article同行評審

24 引文 斯高帕斯(Scopus)

摘要

Surface plasmon-like (SPL) modes are the electromagnetic surface eigenmodes supported by the structured perfectly conducting surfaces. The standard eigenvalue-solving method is adopted to solve these SPL modes. The field patterns of the SPL modes in the square holes for inplane wavevectors k x = 2π/2d and kx = 2π/d are TE10-like and TE11, respectively. However, the field patterns can no longer be identified as any particular waveguide mode for other in-plane wavevectors. The dispersion relations of the SPL modes are obtained numerically. The change in mode character with wavevector prevents the dispersion relation from being derived by assuming only the fundamental mode in the holes. On a thin perfect conductor perforated with structures, the SPL mode splits into a high-frequency anti-symmetric mode and a low-frequency symmetric mode, which is caused by the mutual interaction of the electromagnetic evanescent fields on both sides.

原文English
頁(從 - 到)11339-11347
頁數9
期刊Optics Express
14
發行號23
DOIs
出版狀態Published - 2006 11月

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學

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