Volume 83, Number 2, July 2008
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||27 June 2008|
Resonance capacity of surface plasmon on subwavelength metallic structures
State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University - Beijing 100871, China
Corresponding authors: email@example.com firstname.lastname@example.org
Accepted: 28 May 2008
Green's matrix method as well as the newly defined resonance capacity of surface plasmon are presented and applied to select the strong resonances for arbitrary shaped subwavelength metallic structures. The resonance capacity distributions for a certain structure type make it possible to tailor the metallic resonant properties in the selected wavelength. Moreover, the resonance capacity is found to be almost immune to the incident wavelength for a definite structure zoomed in or out in the subwavelength scale . Our numerical calculations are also in agreement with the previous experimental results on nanoantennas.
PACS: 73.20.Mf – Collective excitations (including excitons, polarons, plasmons and other charge-density excitations) / 78.67.-n – Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures / 78.68.+m – Optical properties of surfaces
© EPLA, 2008
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