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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. 8 — Aug. 1, 2008
  • pp: 1328–1335

Controlling the recombination rate of semiconductor active layers via coupling to dispersion-engineered surface plasmons

John Henson, Anirban Bhattacharyya, Theodore D. Moustakas, and Roberto Paiella  »View Author Affiliations


JOSA B, Vol. 25, Issue 8, pp. 1328-1335 (2008)
http://dx.doi.org/10.1364/JOSAB.25.001328


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Abstract

The coupling between excited electron-hole pairs in semiconductor active layers and surface plasmon polaritons in metallo-dielectric stacks is investigated. These structures can be used to engineer the surface-plasmon dispersion properties so as to introduce tunable singularities in the photonic density of modes, and hence in the recombination rate of nearby active media. A detailed theoretical study of this effect is presented together with the experimental demonstration of geometrically tunable increased recombination in Ga N Al Ga N quantum wells via near-UV photoluminescence measurements. If combined with a suitable geometry to efficiently scatter the emitted surface waves into radiation, this approach can be used for light-emission efficiency enhancement at tunable wavelengths.

© 2008 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(250.5230) Optoelectronics : Photoluminescence

ToC Category:
Optics at Surfaces

History
Original Manuscript: February 22, 2008
Revised Manuscript: May 5, 2008
Manuscript Accepted: May 6, 2008
Published: July 28, 2008

Citation
John Henson, Anirban Bhattacharyya, Theodore D. Moustakas, and Roberto Paiella, "Controlling the recombination rate of semiconductor active layers via coupling to dispersion-engineered surface plasmons," J. Opt. Soc. Am. B 25, 1328-1335 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-8-1328

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