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Spontaneous nonground state polariton condensation in pillar microcavities

Spontaneous nonground state polariton condensation in pillar microcavities
Spontaneous nonground state polariton condensation in pillar microcavities
We observe spontaneously driven nonground state polariton condensation in GaAs pillar microcavities under nonresonant optical excitation. We identify a regime where the interplay of exciton-exciton and pair polariton scattering can lead to mode switching from nonground state to ground state polariton condensation. A simple kinematic model satisfactorily describes the observed mode switching as each of the above scattering mechanisms becomes prevalent at different carrier densities.

1550-235X
81307
Maragkou, Maria
b5dfa252-5926-4870-b444-581272470414
Grundy, A.J.D.
a212073e-e7f1-4708-82cb-79b2ce3bb41b
Wertz, E.
aa89aa99-06eb-4234-9318-d8a0cc1f38c1
Lemaître, A.
68b4cbac-f148-4ff5-bf1b-cd72e4a027fe
Sagnes, I.
2c96ab5e-82b6-4f52-9f1a-1c71f4bd798e
Senellart, P.
83b98ae4-9f06-4532-ae7f-59bc790a4612
Bloch, J.
be34f326-179d-4383-a7b5-eee0578fc16c
Lagoudakis, P.G.
ea50c228-f006-4edf-8459-60015d961bbf
Maragkou, Maria
b5dfa252-5926-4870-b444-581272470414
Grundy, A.J.D.
a212073e-e7f1-4708-82cb-79b2ce3bb41b
Wertz, E.
aa89aa99-06eb-4234-9318-d8a0cc1f38c1
Lemaître, A.
68b4cbac-f148-4ff5-bf1b-cd72e4a027fe
Sagnes, I.
2c96ab5e-82b6-4f52-9f1a-1c71f4bd798e
Senellart, P.
83b98ae4-9f06-4532-ae7f-59bc790a4612
Bloch, J.
be34f326-179d-4383-a7b5-eee0578fc16c
Lagoudakis, P.G.
ea50c228-f006-4edf-8459-60015d961bbf

Maragkou, Maria, Grundy, A.J.D., Wertz, E., Lemaître, A., Sagnes, I., Senellart, P., Bloch, J. and Lagoudakis, P.G. (2010) Spontaneous nonground state polariton condensation in pillar microcavities. Physical Review B, B 81 (8), 81307. (doi:10.1103/PhysRevB.81.081307).

Record type: Article

Abstract

We observe spontaneously driven nonground state polariton condensation in GaAs pillar microcavities under nonresonant optical excitation. We identify a regime where the interplay of exciton-exciton and pair polariton scattering can lead to mode switching from nonground state to ground state polariton condensation. A simple kinematic model satisfactorily describes the observed mode switching as each of the above scattering mechanisms becomes prevalent at different carrier densities.

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More information

Published date: 24 February 2010
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 153385
URI: http://eprints.soton.ac.uk/id/eprint/153385
ISSN: 1550-235X
PURE UUID: a20ba0b3-32bd-4202-91ac-4c3fea947c07

Catalogue record

Date deposited: 19 May 2010 15:50
Last modified: 16 Jul 2019 23:59

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