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Linear wave dynamics explains observations attributed to dark solitons in a polariton quantum fluid

Linear wave dynamics explains observations attributed to dark solitons in a polariton quantum fluid
Linear wave dynamics explains observations attributed to dark solitons in a polariton quantum fluid
We investigate the propagation and scattering of polaritons in a planar GaAs microcavity in the linear regime under resonant excitation. The propagation of the coherent polariton wave across an extended defect creates phase and intensity patterns with identical qualitative features previously attributed to dark and half-dark solitons of polaritons. We demonstrate that these features are observed for negligible nonlinearity (i.e., polariton-polariton interaction) and are, therefore, not sufficient to identify dark and half-dark solitons. A linear model based on the Maxwell equations is shown to reproduce the experimental observations.
1-5
Cilibrizzi, P.
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Ohadi, H.
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Ostatnicky, T.
de4a407d-08a2-47a7-8501-c679947beed7
Askitopoulos, A.
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Langbein, W.
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Lagoudakis, P.
ea50c228-f006-4edf-8459-60015d961bbf
Cilibrizzi, P.
f89ca883-e3e8-473c-a5a1-d387ebf8730f
Ohadi, H.
6d640feb-3da7-4a79-8e71-16190bf9a3f7
Ostatnicky, T.
de4a407d-08a2-47a7-8501-c679947beed7
Askitopoulos, A.
7ccee4f4-5ea2-408f-beb3-3ff5b281f4e4
Langbein, W.
41e31f9b-0375-4556-be1f-296e8638703b
Lagoudakis, P.
ea50c228-f006-4edf-8459-60015d961bbf

Cilibrizzi, P., Ohadi, H., Ostatnicky, T., Askitopoulos, A., Langbein, W. and Lagoudakis, P. (2014) Linear wave dynamics explains observations attributed to dark solitons in a polariton quantum fluid. Physical Review Letters, 113 (10), 1-5, [103901]. (doi:10.1103/PhysRevLett.113.103901).

Record type: Article

Abstract

We investigate the propagation and scattering of polaritons in a planar GaAs microcavity in the linear regime under resonant excitation. The propagation of the coherent polariton wave across an extended defect creates phase and intensity patterns with identical qualitative features previously attributed to dark and half-dark solitons of polaritons. We demonstrate that these features are observed for negligible nonlinearity (i.e., polariton-polariton interaction) and are, therefore, not sufficient to identify dark and half-dark solitons. A linear model based on the Maxwell equations is shown to reproduce the experimental observations.

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e-pub ahead of print date: 3 September 2014
Published date: 3 September 2014
Organisations: Quantum, Light & Matter Group

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Local EPrints ID: 401535
URI: http://eprints.soton.ac.uk/id/eprint/401535
PURE UUID: 23152c62-e193-4b03-9869-372484c188b8

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Date deposited: 18 Oct 2016 12:39
Last modified: 14 Feb 2020 17:31

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