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Transition from Propagating Polariton Solitons to a Standing Wave Condensate Induced by Interactions

Transition from Propagating Polariton Solitons to a Standing Wave Condensate Induced by Interactions


Titill: Transition from Propagating Polariton Solitons to a Standing Wave Condensate Induced by Interactions
Höfundur: Sich, M.
Chana, J. K.
Egorov, O. A.
Sigurdsson, Helgi   orcid.org/0000-0002-4156-4414
Shelykh, I. A.
Skryabin, D. V.
Walker, P. M.
Clarke, E.
Royall, B.
Skolnick, M. S.
... 1 fleiri höfundar Sýna alla höfunda
Útgáfa: 2018-04-19
Tungumál: Enska
Háskóli/Stofnun: Háskóli Íslands
University of Iceland
Svið: Verkfræði- og náttúruvísindasvið (HÍ)
School of Engineering and Natural Sciences (UI)
Deild: Raunvísindastofnun (HÍ)
Science Institute (UI)
Birtist í: Physical Review Letters;120(16)
ISSN: 0031-9007
1079-7114 (eISSN)
DOI: 10.1103/PhysRevLett.120.167402
Efnisorð: Exciton polariton; Nonlinear optics; Optical & microwave phenomena; Condensed Matter & Materials Physics; Eðlisfræði; Þéttefnisfræði; Örbylgjur; Skautun (rafsegulfræði)
URI: https://hdl.handle.net/20.500.11815/804

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Tilvitnun:

Sich, M., Chana, J. K., Egorov, O. A., Sigurdsson, H., Shelykh, I. A., Skryabin, D. V., . . . Krizhanovskii, D. N. (2018). Transition from Propagating Polariton Solitons to a Standing Wave Condensate Induced by Interactions. Physical Review Letters, 120(16), 167402. doi:10.1103/PhysRevLett.120.167402

Útdráttur:

We explore phase transitions of polariton wave packets, first, to a soliton and then to a standing wave polariton condensate in a multimode microwire system, mediated by nonlinear polariton interactions. At low excitation density, we observe ballistic propagation of the multimode polariton wave packets arising from the interference between different transverse modes. With increasing excitation density, the wave packets transform into single-mode bright solitons due to effects of both intermodal and intramodal polariton-polariton scattering. Further increase of the excitation density increases thermalization speed, leading to relaxation of the polariton density from a solitonic spectrum distribution in momentum space down to low momenta, with the resultant formation of a nonequilibrium condensate manifested by a standing wave pattern across the whole sample.

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