Surface plasmon amplification by stimulated emission in nanolenses

Kuiru Li, Xiangting Li, Mark I. Stockman, and David J. Bergman
Phys. Rev. B 71, 115409 – Published 10 March 2005

Abstract

We propose surface plasmon amplification by stimulated emission of radiation (spaser) in nanolenses: Linear center-symmetric chains of metal nanospheres, embedded in an active medium of quantum dots. Predominantly amplified are the dark, odd-parity eigenmodes, which do not suffer dipole-radiative losses and produce coherent local optical fields comparable in strength to atomic fields, with minimal far-field radiation. There are many prospective applications for such spasers.

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  • Received 16 July 2004

DOI:https://doi.org/10.1103/PhysRevB.71.115409

©2005 American Physical Society

Authors & Affiliations

Kuiru Li1,*, Xiangting Li2,3,†, Mark I. Stockman1,‡, and David J. Bergman2,§

  • 1Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA
  • 2School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
  • 3Institute of Theoretical Physics, Shanghai Jiaotong University, Shanghai 200240, China

  • *Electronic address: phykxl@panther.gsu.edu
  • Electronic address: xiangtingli@yahoo.com
  • Electronic address: mstockman@gsu.edu; URL: http://www.phy-astr.gsu.edu/stockman
  • §Electronic address: bergman@post.tau.ac.il

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Vol. 71, Iss. 11 — 15 March 2005

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