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arXiv · 1407.6535

Polariton condensation in a planar microcavity with InGaAs quantum wells

Pasquale Cilibrizzi·Alexis Askitopoulos·Matteo Silva·Edmund Clarke·Joanna M. Zajac·Wolfgang Langbein·Pavlos G. Lagoudakis
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Abstract

Polariton lattice condensates provide a platform for on chip quantum emulations. Interactions in extended polariton lattices are currently limited by the intrinsic photonic disorder of microcavities. Here, we fabricate a strain compensated planar GaAs/AlAs microcavity with embedded InGaAs quantum wells and report on polariton condensation under non-resonant optical excitation. Evidence of polariton condensation is supported spectroscopically both in reflection and transmission geometry, whilst the observation of a second threshold to photon lasing allows us to conclusively distinguish between the strong- and weak-coupling non-linear regimes.

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Pasquale Cilibrizzi, Alexis Askitopoulos, Matteo Silva, Edmund Clarke, Joanna M. Zajac, Wolfgang Langbein, Pavlos G. Lagoudakis. 2014-07-24. Polariton condensation in a planar microcavity with InGaAs quantum wells. https://doi.org/10.1063/1.4901814

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