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Tuning the energy of a polariton condensate via bias-controlled Rabi splitting

Tuning the energy of a polariton condensate via bias-controlled Rabi splitting
Tuning the energy of a polariton condensate via bias-controlled Rabi splitting
We introduce an electrically driven scheme to tune the polariton condensate energy in a high-finesse GaAs microcavity. In contrast to the conventional redshift observed in semiconductor quantum wells (QWs) under applied electrical bias arising from the quantum-confined Stark effect (QCSE), we report here the blueshift of a polariton condensate caused by controlled reduction of the Rabi splitting due to tunneling-induced charge buildup and fractional bleaching of QWs. At larger electrical bias, the QCSE becomes dominant, leading to a redshift in the linear regime, while in the nonlinear regime to the eventual quenching of the condensate emission. This ability to tune the polariton condensate energy brings within reach the realization of voltage-controlled polariton condensate devices and variable-wavelength sources of coherent light.
2331-7019
Tsotsis, P.
7a280fad-d3db-4fa1-8698-6d569c04d103
Tsintzos, S. I.
37ff6661-31c1-47f6-a5a4-8b3cc6b16580
Christmann, G.
f33516d7-4986-49db-bf0a-87af05eea29b
Lagoudakis, P. G.
ea50c228-f006-4edf-8459-60015d961bbf
Kyriienko, O.
f7d94f06-9232-4a2b-a69d-a82fb657494f
Shelykh, I. A.
15cf9517-d657-414d-9b2a-191a73faf599
Baumberg, J. J.
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Kavokin, A. V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Hatzopoulos, Z.
4ee394c3-9399-41e2-ab9b-2ddab346bd41
Eldridge, P. S.
62739b3b-14eb-4a0b-8e6d-4d4f24cc836d
Savvidis, P. G.
9922c8cf-9504-4949-822c-767cdcad58be
Tsotsis, P.
7a280fad-d3db-4fa1-8698-6d569c04d103
Tsintzos, S. I.
37ff6661-31c1-47f6-a5a4-8b3cc6b16580
Christmann, G.
f33516d7-4986-49db-bf0a-87af05eea29b
Lagoudakis, P. G.
ea50c228-f006-4edf-8459-60015d961bbf
Kyriienko, O.
f7d94f06-9232-4a2b-a69d-a82fb657494f
Shelykh, I. A.
15cf9517-d657-414d-9b2a-191a73faf599
Baumberg, J. J.
9eb85b3d-107f-466d-ac6e-2cfd03c9229a
Kavokin, A. V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Hatzopoulos, Z.
4ee394c3-9399-41e2-ab9b-2ddab346bd41
Eldridge, P. S.
62739b3b-14eb-4a0b-8e6d-4d4f24cc836d
Savvidis, P. G.
9922c8cf-9504-4949-822c-767cdcad58be

Tsotsis, P., Tsintzos, S. I., Christmann, G., Lagoudakis, P. G., Kyriienko, O., Shelykh, I. A., Baumberg, J. J., Kavokin, A. V., Hatzopoulos, Z., Eldridge, P. S. and Savvidis, P. G. (2014) Tuning the energy of a polariton condensate via bias-controlled Rabi splitting. Physical Review Applied, 2 (1). (doi:10.1103/PhysRevApplied.2.014002).

Record type: Article

Abstract

We introduce an electrically driven scheme to tune the polariton condensate energy in a high-finesse GaAs microcavity. In contrast to the conventional redshift observed in semiconductor quantum wells (QWs) under applied electrical bias arising from the quantum-confined Stark effect (QCSE), we report here the blueshift of a polariton condensate caused by controlled reduction of the Rabi splitting due to tunneling-induced charge buildup and fractional bleaching of QWs. At larger electrical bias, the QCSE becomes dominant, leading to a redshift in the linear regime, while in the nonlinear regime to the eventual quenching of the condensate emission. This ability to tune the polariton condensate energy brings within reach the realization of voltage-controlled polariton condensate devices and variable-wavelength sources of coherent light.

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Published date: 2 July 2014

Identifiers

Local EPrints ID: 430559
URI: http://eprints.soton.ac.uk/id/eprint/430559
ISSN: 2331-7019
PURE UUID: 89d4de0d-5fbf-4fb0-abbf-691b55dca2dc

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Date deposited: 03 May 2019 16:30
Last modified: 03 May 2019 16:30

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Contributors

Author: P. Tsotsis
Author: S. I. Tsintzos
Author: G. Christmann
Author: O. Kyriienko
Author: I. A. Shelykh
Author: J. J. Baumberg
Author: A. V. Kavokin
Author: Z. Hatzopoulos
Author: P. S. Eldridge
Author: P. G. Savvidis

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