Decay and coherence of two-photon excited yellow ortho-excitons in Cu2O

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dc.creatorKarpinska, K.
dc.creatorMostovoy, M.
dc.creatorvan der Vegte, M. A.
dc.creatorRevcolevschi, A.
dc.creatorvan Loosdrecht, P. H. M.
dc.date2005-05-15
dc.date.accessioned2026-07-07T06:33:36Z
dc.date.available2026-07-07T06:33:36Z
dc.descriptionPhotoluminescence excitation spectroscopy has revealed a novel, highly efficient two-photon excitation method to produce a cold, uniformly distributed high density excitonic gas in bulk cuprous oxide. A study of the time evolution of the density, temperature and chemical potential of the exciton gas shows that the so called quantum saturation effect that prevents Bose-Einstein condensation of the ortho-exciton gas originates from an unfavorable ratio between the cooling and recombination rates. Oscillations observed in the temporal decay of the ortho-excitonic luminescence intensity are discussed in terms of polaritonic beating. We present the semiclassical description of polaritonic oscillations in linear and non-linear optical processes.
dc.description14 pages, 12 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0505368
dc.identifierhttp://arxiv.org/abs/cond-mat/0505368
dc.identifierPhysical Review B72, 155201 (2005).
dc.identifierdoi:10.1103/PhysRevB.72.155201
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/99248
dc.subjectStrongly Correlated Electrons
dc.subjectOther Condensed Matter
dc.titleDecay and coherence of two-photon excited yellow ortho-excitons in Cu2O
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