Electrically injected cavity polaritons
Electrically injected cavity polaritons
We have realized an electroluminescent device operating in the light-matter strong-coupling regime based on a GaAs/AlGaAs quantum cascade structure embedded in a planar microcavity. At zero bias, reflectivity measurements show a polariton anticrossing between the intersubband transition and the cavity mode. Under electrical injection the spectral features of the emitted light change drastically, as electrons are resonantly injected in a reduced part of the polariton branches. Our experiments demonstrate that electrons can be selectively injected into polariton states up to room temperature.
6806-6809
Sapienza, Luca
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Vasanelli, A.
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Colombelli, R.
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Ciuti, C.
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Chassagneux, Y.
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Manquest, C.
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Gennser, U.
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Sirtori, C.
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4 April 2008
Sapienza, Luca
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Vasanelli, A.
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Colombelli, R.
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Ciuti, C.
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Chassagneux, Y.
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Manquest, C.
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Gennser, U.
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Sirtori, C.
9bbf2b9d-a71c-470b-a09b-ef647fe2654d
Sapienza, Luca, Vasanelli, A. and Colombelli, R. et al.
(2008)
Electrically injected cavity polaritons.
Physical Review Letters, 100 (13), .
(doi:10.1103/PhysRevLett.100.136806).
Abstract
We have realized an electroluminescent device operating in the light-matter strong-coupling regime based on a GaAs/AlGaAs quantum cascade structure embedded in a planar microcavity. At zero bias, reflectivity measurements show a polariton anticrossing between the intersubband transition and the cavity mode. Under electrical injection the spectral features of the emitted light change drastically, as electrons are resonantly injected in a reduced part of the polariton branches. Our experiments demonstrate that electrons can be selectively injected into polariton states up to room temperature.
Text
PhysRevLett.100.136806.pdf
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Published date: 4 April 2008
Organisations:
Quantum, Light & Matter Group
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Local EPrints ID: 358599
URI: http://eprints.soton.ac.uk/id/eprint/358599
PURE UUID: d32e513b-1b25-4642-b6f1-27936830736b
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Date deposited: 11 Oct 2013 13:28
Last modified: 14 Mar 2024 15:06
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Contributors
Author:
Luca Sapienza
Author:
A. Vasanelli
Author:
R. Colombelli
Author:
C. Ciuti
Author:
Y. Chassagneux
Author:
C. Manquest
Author:
U. Gennser
Author:
C. Sirtori
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