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Stimulated spin dynamics of polaritons in semiconductor microcavities

P. G. Lagoudakis, P. G. Savvidis, J. J. Baumberg, D. M. Whittaker, P. R. Eastham, M. S. Skolnick, and J. S. Roberts
Phys. Rev. B 65, 161310(R) – Published 19 April 2002
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Abstract

Time-resolved polarization spectroscopy of polariton pair scattering in semiconductor microcavities enables complete measurement of the polariton spin dynamics. In addition to spin-preserving interactions previously reported, we observe two additional even stronger scattering processes, which mix polaritons of opposite spin. Because of the polaritons’ bosonic character, this results in the stimulation of spin flips. Such mechanisms should allow realization of spin-sensitive interferometers.

  • Received 25 February 2002

DOI:https://doi.org/10.1103/PhysRevB.65.161310

©2002 American Physical Society

Authors & Affiliations

P. G. Lagoudakis1, P. G. Savvidis1, J. J. Baumberg1, D. M. Whittaker2, P. R. Eastham2, M. S. Skolnick3, and J. S. Roberts4

  • 1Department of Physics & Astronomy, University of Southampton, Southampton SO17 1BJ, United Kingdom
  • 2Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom
  • 3Department of Physics, University of Sheffield, Sheffield S3 7RH, United Kingdom
  • 4Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom

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Vol. 65, Iss. 16 — 15 April 2002

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