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|Title:||Signature of the microcavity exciton-polariton relaxation mechanism in the polarization of emitted light||Authors:||Roumpos, G.
|Issue Date:||1-May-2009||Citation:||Roumpos, G., Lai, C.-W., Liew, T.C.H., Rubo, Y.G., Kavokin, A.V., Yamamoto, Y. (2009-05-01). Signature of the microcavity exciton-polariton relaxation mechanism in the polarization of emitted light. Physical Review B - Condensed Matter and Materials Physics 79 (19) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.79.195310||Abstract:||We have performed real and momentum space spin-dependent spectroscopies of spontaneously formed exciton polariton condensates for a nonresonant pumping scheme. Under a linearly polarized pump, our results can be understood in terms of spin-dependent Boltzmann equations in a two-state model. This suggests that relaxation into the ground state occurs after multiple phonon-scattering events and only one polariton-polariton scattering. For the circular pumping case, in which only excitons of one spin are injected, a bottleneck effect is observed, implying inefficient relaxation. © 2009 The American Physical Society.||Source Title:||Physical Review B - Condensed Matter and Materials Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/112515||ISSN:||10980121||DOI:||10.1103/PhysRevB.79.195310|
|Appears in Collections:||Staff Publications|
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