Propagation and Amplification Dynamics of 1D Polariton Condensates

E. Wertz, A. Amo, D. D. Solnyshkov, L. Ferrier, T. C. H. Liew, D. Sanvitto, P. Senellart, I. Sagnes, A. Lemaître, A. V. Kavokin, G. Malpuech, and J. Bloch
Phys. Rev. Lett. 109, 216404 – Published 21 November 2012
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Abstract

The dynamics of propagating polariton condensates in one-dimensional microcavities is investigated through time resolved experiments. We find a strong increase in the condensate intensity when it travels through the nonresonantly excited area. This amplification is shown to come from bosonic stimulated relaxation of reservoir excitons into the polariton condensate, allowing for the repopulation of the condensate through nonresonant pumping. Thus, we experimentally demonstrate a polariton amplifier with a large band width, opening the way towards the transport of polaritons with high densities over macroscopic distances.

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  • Received 5 July 2012

DOI:https://doi.org/10.1103/PhysRevLett.109.216404

© 2012 American Physical Society

Authors & Affiliations

E. Wertz1, A. Amo1, D. D. Solnyshkov2, L. Ferrier1, T. C. H. Liew3, D. Sanvitto4,5, P. Senellart1, I. Sagnes1, A. Lemaître1, A. V. Kavokin6,7, G. Malpuech2, and J. Bloch1,*

  • 1CNRS-Laboratoire de Photonique et Nanostructures, Route de Nozay, 91460 Marcoussis, France
  • 2Institut Pascal, PHOTON-N2, Clermont Université, University Blaise Pascal, CNRS, 24 avenue des Landais, 63177 Aubière Cedex, France
  • 3Mediterranean Institute of Fundamental Physics, 31 via Appia Nuova, 00040 Rome, Italy
  • 4NNL, Istituto Nanoscienze—CNR, Via Arnesano, 73100 Lecce, Italy
  • 5Istituto Italiano di Tecnologia, Via Barsanti 73010 Lecce, Italy
  • 6Physics and Astronomy School, University of Southampton, Highfield, Southampton SO171BJ, United Kingdom
  • 7Laboratoire Charles Coulomb, CNRS-Universite de Montpellier II, Pl. Eugene de Bataillon, 34095 Montpellier Cedex, France

  • *jacqueline.bloch@lpn.cnrs.fr

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Issue

Vol. 109, Iss. 21 — 21 November 2012

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