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Optics Letters

Optics Letters


  • Vol. 36, Iss. 7 — Apr. 1, 2011
  • pp: 1296–1298

Efficient surface plasmon amplification from gain-assisted gold nanorods

Si-Yun Liu, Jiafang Li, Fei Zhou, Lin Gan, and Zhi-Yuan Li  »View Author Affiliations

Optics Letters, Vol. 36, Issue 7, pp. 1296-1298 (2011)

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We report on the efficient surface plasmon amplification by stimulated emission of radiation (spaser) from a gold nanorod coated with proper gain media. Numerical simulations show that the threshold of the nanorod- based spaser is nearly 1 order of magnitude lower than that of the core-shell nanosphere, which is verified by analysis with electrostatic theory. Furthermore, it is found that the nanorod-based nanosystem possesses unique optical properties such as wavelength tunability and polarization sensitivity.

© 2011 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(240.6680) Optics at surfaces : Surface plasmons
(290.5850) Scattering : Scattering, particles

ToC Category:
Optics at Surfaces

Original Manuscript: November 16, 2010
Revised Manuscript: February 18, 2011
Manuscript Accepted: March 11, 2011
Published: April 1, 2011

Si-Yun Liu, Jiafang Li, Fei Zhou, Lin Gan, and Zhi-Yuan Li, "Efficient surface plasmon amplification from gain-assisted gold nanorods," Opt. Lett. 36, 1296-1298 (2011)

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