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Impact of high-order surface plasmon modes of metal nanoparticles on enhancement of optical emission

Appl. Phys. Lett. 95, 171103 (2009); doi:10.1063/1.3250160

Published 27 October 2009

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G. Sun,1 J. B. Khurgin,2 and C. C. Yang3
1Department of Physics, University of Massachusetts Boston, Boston, Massachusetts 02125, USA
2Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA
3Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
We consider the impact of high-order surface plasmon modes supported by the metal nanoparticles on the efficiency enhancement of optical emission. Using the example of Au nanosphere embedded in the GaN dielectric, we show that for an emitter with certain original radiative efficiency, placing the emitter too close to the metal sphere does not always produce additional enhancement. Thus our model provides analytical treatment of the luminescence quenching and can be used to optimize both nanoparticle size and its separation from the emitter to yield maximum enhancement. ©2009 American Institute of Physics
History: Received 13 August 2009; accepted 23 September 2009; published 27 October 2009
Permalink: http://link.aip.org/link/?APPLAB/95/171103/1
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KEYWORDS and PACS

Keywords
PACS
  • 73.20.Mf
    Collective excitations (surface/interface states)
  • 61.46.Df
    Structure of nanocrystals and nanoparticles
  • 78.55.Hx
    Photoluminescence in solid inorganic materials
  • 78.67.Bf
    Optical properties of nanocrystals and nanoparticles
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (15)
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