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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 12 — Jun. 15, 2007
  • pp: 1623–1625

Design of plasmonic nanoantennae for enhancing spontaneous emission

Lavinia Rogobete, Franziska Kaminski, Mario Agio, and Vahid Sandoghdar  »View Author Affiliations


Optics Letters, Vol. 32, Issue 12, pp. 1623-1625 (2007)
http://dx.doi.org/10.1364/OL.32.001623


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Abstract

We apply two- and three-dimensional numerical calculations to study optical nanoantennae made of two coupled gold nanostructures, enclosing a single emitter in their gap. We show that, using structures manufacturable with today’s nanotechnology, it is possible to increase the radiative decay rate by three orders of magnitude while keeping a quantum efficiency larger than 80% in the near-infrared regime. We examine the competition between the radiative and nonradiative processes in the presence of the antennae as a function of wavelength and antenna geometry. Our results hold great promise for improving the quantum efficiency of poor emitters such as silicon nanocrystals or carbon nanotubes.

© 2007 Optical Society of America

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(270.0270) Quantum optics : Quantum optics
(290.5850) Scattering : Scattering, particles

ToC Category:
Quantum Optics

History
Original Manuscript: February 15, 2007
Manuscript Accepted: March 12, 2007
Published: June 5, 2007

Citation
Lavinia Rogobete, Franziska Kaminski, Mario Agio, and Vahid Sandoghdar, "Design of plasmonic nanoantennae for enhancing spontaneous emission," Opt. Lett. 32, 1623-1625 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-12-1623

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