Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 11339-11347 |
| Number of pages | 9 |
| Journal | Optics Express |
| Volume | 14 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - 2006 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
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Surface plasmon-like modes on structured perfectly conducting surfaces. / Lan, Yung-Chiang; Chern, Ruey Lin.
In: Optics Express, Vol. 14, No. 23, 01.01.2006, p. 11339-11347.Research output: Contribution to journal › Article
TY - JOUR
T1 - Surface plasmon-like modes on structured perfectly conducting surfaces
AU - Lan, Yung-Chiang
AU - Chern, Ruey Lin
PY - 2006/1/1
Y1 - 2006/1/1
N2 - 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.
AB - 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.
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U2 - 10.1364/OE.14.011339
DO - 10.1364/OE.14.011339
M3 - Article
VL - 14
SP - 11339
EP - 11347
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 23
ER -