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Spatial coherence properties of one dimensional exciton-polariton condensates

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Hofling_2014_PRL_Spatial.pdf (691.4Kb)
Date
14/11/2014
Author
Fischer, J.
Savenko, I.G.
Fraser, M.D.
Holzinger, S.
Brodbeck, S.
Kamp, M.
Shelykh, I.A.
Schneider, C.
Höfling, S.
Keywords
QD Chemistry
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Abstract
In this work, we combine a systematic experimental investigation of the power- and temperature-dependent evolution of the spatial coherence function, g(1)(r), in a one dimensional exciton-polariton channel with a modern microscopic numerical theory based on a stochastic master equation approach. The spatial coherence function g(1)(r) is extracted via high-precision Michelson interferometry, which allows us to demonstrate that in the regime of nonresonant excitation, the dependence g(1)(r) reaches a saturation value with a plateau, which is determined by the intensity of the pump and effective temperature of the crystal lattice. The theory, which was extended to allow for treating incoherent excitation in a stochastic frame, matches the experimental data with good qualitative and quantitative agreement. This allows us to verify the prediction that the decay of the off-diagonal long-range order can be almost fully suppressed in one dimensional condensate systems.
Citation
Fischer , J , Savenko , I G , Fraser , M D , Holzinger , S , Brodbeck , S , Kamp , M , Shelykh , I A , Schneider , C & Höfling , S 2014 , ' Spatial coherence properties of one dimensional exciton-polariton condensates ' , Physical Review Letters , vol. 113 , no. 20 . https://doi.org/10.1103/PhysRevLett.113.203902
Publication
Physical Review Letters
Status
Peer reviewed
DOI
https://doi.org/10.1103/PhysRevLett.113.203902
ISSN
0031-9007
Type
Journal article
Rights
© 2014 American Physical Society
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  • University of St Andrews Research
URL
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.203902#supplemental
URI
http://hdl.handle.net/10023/5884

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