Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2009-07-20
Physics
Condensed Matter
Other Condensed Matter
4 pages, 3 figures
Scientific paper
We observe spontaneously driven non-ground state polariton condensation in GaAs pillar microcavities under non-resonant optical excitation. We identify a regime where the interplay of exciton-exciton and pair polariton scattering can lead to mode switching from non-ground state to ground state polariton condensation. A simple kinematic model satisfactorily describes the observed mode switching as each of the above scattering mechanisms becomes prevalent at different carrier densities.
Bloch Jacqueline
Grundy A. J. D.
Lagoudakis Pavlos G.
Lemaître Aristide
Maragkou Maria
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