Optics and Spectroscopy

, Volume 117, Issue 3, pp 453–461 | Cite as

Oscillation threshold of a chain of spasers

Nonlinear and Quantum Optics
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Abstract

A model of resonance interaction of a chain of periodically spaced metal nanoparticles with a chain of quantum dots is developed. The conditions leading to oscillation in a chain of spasers in the vicinity of narrow plasmon resonances are determined. It is shown that the lowest oscillation threshold can be achieved under anomalously small values of population inversion. In this case, the range of oscillation frequency variation upon changing the resonance frequency of quantum dots can be substantially narrower that the plasmon-resonance linewidth.

Keywords

Dipole Moment Metal Particle Spectral Dependence Population Inversion Narrow Resonance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Ltd. 2014

Authors and Affiliations

  • S. V. Fedorov
    • 1
    • 2
  • N. N. Rosanov
    • 1
    • 2
    • 3
  • A. V. Shipulin
    • 1
    • 4
  1. 1.St. Petersburg National Research University of Information TechnologiesMechanics and Optics (ITMO University)St. PetersburgRussia
  2. 2.Vavilov State Optical InstituteSt. PetersburgRussia
  3. 3.Ioffe Physical Technical InstituteRussian Academy of SciencesSt. PetersburgRussia
  4. 4.Institute of Applied OpticsFriedrich-Schiller University JenaJenaGermany

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