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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 10 — Oct. 1, 2008
  • pp: 1748–1755

Plasmonic light-emission enhancement with isolated metal nanoparticles and their coupled arrays

G. Sun, J. B. Khurgin, and R. A. Soref  »View Author Affiliations


JOSA B, Vol. 25, Issue 10, pp. 1748-1755 (2008)
http://dx.doi.org/10.1364/JOSAB.25.001748


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Abstract

We present a systematic study of the enhancement of radiative efficiency of light-emitting matter achieved by proximity to metal nanoparticles. Our goal is to ascertain the limits of the attainable enhancement. Two separate arrangements of metal nanoparticles are studied, namely isolated particles and an array of particles. The method of analysis is based on the effective mode volume theory. Using the example of an In Ga N Ga N quantum-well active region positioned in close proximity to Ag nanospheres, we obtain optimal parameters for the nanoparticles for maximum attainable enhancement. Our results show that while the enhancement due to isolated metal nanoparticles is significant, only modest enhancement can be achieved with an ordered array. We further conclude that a random assembly of isolated particles holds an advantage over the ordered arrays for light-emitting devices of finite area.

© 2008 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

History
Original Manuscript: June 27, 2008
Manuscript Accepted: July 2, 2008
Published: September 26, 2008

Citation
G. Sun, J. B. Khurgin, and R. A. Soref, "Plasmonic light-emission enhancement with isolated metal nanoparticles and their coupled arrays," J. Opt. Soc. Am. B 25, 1748-1755 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-10-1748

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