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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 5 — May. 1, 2009
  • pp: 923–929

Characteristics of light emitter coupling with surface plasmons in air/metal/dielectric grating structures

Hung-Lu Chen, Jyh-Yang Wang, Wen-Hung Chuang, Yean-Woei Kiang, and C. C. Yang  »View Author Affiliations


JOSA B, Vol. 26, Issue 5, pp. 923-929 (2009)
http://dx.doi.org/10.1364/JOSAB.26.000923


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Abstract

The dipole radiation power and far-field emission power in the process of dipole surface plasmon (SP) coupling over the spectral range of 400 800 nm in air/Ag/dielectric grating nanostructures with two dipole positions are evaluated based on the boundary integral equation method. Three kinds of SP coupling features are differentiated, including the plane-wave-excited surface plasmon polariton (SPP), dipole-excited SPP, and localized surface plasmon (LSP). The dipole radiation and coupling system emission powers depend on the metal nanostructure, dipole position, and spectral location. Generally, when the Ag layer becomes thinner, the major SPP and LSP coupling features redshift. The emission of a coupling system is mainly on the dipole side of the air/Ag/dielectric nanostructure, even though the metal layer is thin.

© 2009 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

History
Original Manuscript: October 17, 2008
Revised Manuscript: December 19, 2008
Manuscript Accepted: January 17, 2009
Published: April 3, 2009

Citation
Hung-Lu Chen, Jyh-Yang Wang, Wen-Hung Chuang, Yean-Woei Kiang, and C. C. Yang, "Characteristics of light emitter coupling with surface plasmons in air/metal/dielectric grating structures," J. Opt. Soc. Am. B 26, 923-929 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-5-923

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