Stochastic Resonance in Collective Exciton-Polariton Excitations inside a GaAs Microcavity

H. Abbaspour, S. Trebaol, F. Morier-Genoud, M. T. Portella-Oberli, and B. Deveaud
Phys. Rev. Lett. 113, 057401 – Published 29 July 2014
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Abstract

We report the first observation of stochastic resonance in confined exciton polaritons. We evidence this phenomena by tracking the polaritons behavior through two stochastic resonance quantifiers namely the spectral magnification factor and the signal-to-noise ratio. The evolution of the stochastic resonance in the function of the modulation amplitude of the periodic excitation signal is studied. Our experimental observations are well reproduced by numerical simulations performed in the framework of the Gross-Pitaevskii equation under stochastic perturbation.

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  • Received 20 December 2013

DOI:https://doi.org/10.1103/PhysRevLett.113.057401

© 2014 American Physical Society

Authors & Affiliations

H. Abbaspour, S. Trebaol*, F. Morier-Genoud, M. T. Portella-Oberli, and B. Deveaud

  • Laboratory of Quantum Optoelectronics, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland

  • *stephane.trebaol@epfl.ch

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Vol. 113, Iss. 5 — 1 August 2014

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