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Optics Express

Optics Express

  • Editor: Martijn de Sterke
  • Vol. 16, Iss. 20 — Sep. 29, 2008
  • pp: 16113–16123

Surface plasmonic lasing via the amplification of coupled surface plasmon waves inside dielectric-metal-dielectric waveguides

Ashwani Kumar, S. F. Yu, X. F. Li, and S. P. Lau  »View Author Affiliations

Optics Express, Vol. 16, Issue 20, pp. 16113-16123 (2008)

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Coupling of surface plasmon (SP) waves between two metal-dielectric interfaces of a dielectric-metal-dielectric (DMD) waveguide, in which one of the dielectric layers is incorporated with optical gain, is proposed to realize plasmonic lasing. The propagation characteristics of the SP waves supported inside the DMD waveguides are studied by finite-difference time-domain method. It is found that there are optimized thicknesses for the metal film and gain region to obtain minimum propagation loss. Furthermore, a coupled-mode model is developed to analyze the lasing characteristics of the DMD waveguides with coherent optical feedback. The conditions to achieve single-longitudinal-mode lasing from the DMD waveguides are also investigated.

© 2008 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(140.3460) Lasers and laser optics : Lasers
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics

ToC Category:
Optics at Surfaces

Original Manuscript: March 31, 2008
Revised Manuscript: June 7, 2008
Manuscript Accepted: July 21, 2008
Published: September 26, 2008

Ashwani Kumar, S. F. Yu, X. F. Li, and S. P. Lau, "Surface plasmonic lasing via the amplification of coupled surface plasmon waves inside dielectric-metal-dielectric waveguides," Opt. Express 16, 16113-16123 (2008)

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