Spontaneous Polarization Buildup in a Room-Temperature Polariton Laser
Spontaneous Polarization Buildup in a Room-Temperature Polariton Laser
Baumberg, J. J; Kavokin, A. V; Christopoulos, S. V; Grundy, A. J; Butté, R. J; Christmann, G. J; Solnyshkov, D. D; Malpuech, G. D; Baldassarri Höger von Högersthal, G. D; Feltin, E. D; Carlin, J.-F. D; Grandjean, N. D
2008-09-26 00:00:00
We observe the buildup of strong ( <?format ?> ∼ <?format ?> 50 % ) spontaneous vector polarization in emission from a GaN-based polariton laser excited by short optical pulses at room temperature. The Stokes vector of emitted light changes its orientation randomly from one excitation pulse to another, so that the time-integrated polarization remains zero. This behavior is completely different from any previous laser. We interpret this observation in terms of the spontaneous symmetry breaking in a Bose-Einstein condensate of exciton polaritons.
http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.pngPhysical Review LettersAmerican Physical Society (APS)http://www.deepdyve.com/lp/american-physical-society-aps/spontaneous-polarization-buildup-in-a-room-temperature-polariton-laser-0ERmQWGdkt
Spontaneous Polarization Buildup in a Room-Temperature Polariton Laser
We observe the buildup of strong ( <?format ?> ∼ <?format ?> 50 % ) spontaneous vector polarization in emission from a GaN-based polariton laser excited by short optical pulses at room temperature. The Stokes vector of emitted light changes its orientation randomly from one excitation pulse to another, so that the time-integrated polarization remains zero. This behavior is completely different from any previous laser. We interpret this observation in terms of the spontaneous symmetry breaking in a Bose-Einstein condensate of exciton polaritons.
Journal
Physical Review Letters
– American Physical Society (APS)
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