Relaxation bottleneck and its suppression in semiconductor microcavities
Relaxation bottleneck and its suppression in semiconductor microcavities
A polariton relaxation bottleneck is observed in angle-resolved measurements of photoluminescence emission from a semiconductor microcavity. For low power laser excitation, low k polariton states are found to have a very small population relative to those at high k. The bottleneck is found to be strongly suppressed at higher powers in the regime of superlinear emission of the lower polariton states. Evidence for the important role of carrier-carrier scattering in suppression of the bottleneck is presented.
R2283-R2286
Tartakovskii, A.I.
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Emam-Ismail, M.
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Stevenson, R.M.
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Skolnick, M.S.
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Astratov, V.N.
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Whittaker, D.M.
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Baumberg, J.J.
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Roberts, J.S.
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15 July 2000
Tartakovskii, A.I.
7e3511c6-3557-44f6-b5c6-75b843668936
Emam-Ismail, M.
a09b37ee-bcd2-47b0-8ef7-3b8b5c9ae350
Stevenson, R.M.
aeca1469-391c-4574-a511-06e27b4c61c7
Skolnick, M.S.
f3155840-dc44-4f68-8329-a139a585cc6a
Astratov, V.N.
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Whittaker, D.M.
c2c77600-df06-4a2a-81a2-628964c9204c
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Roberts, J.S.
c4eae59e-8356-4436-b317-670038103d16
Tartakovskii, A.I., Emam-Ismail, M., Stevenson, R.M., Skolnick, M.S., Astratov, V.N., Whittaker, D.M., Baumberg, J.J. and Roberts, J.S.
(2000)
Relaxation bottleneck and its suppression in semiconductor microcavities.
Physical Review B, 62 (4), .
(doi:10.1103/PhysRevB.62.R2283).
Abstract
A polariton relaxation bottleneck is observed in angle-resolved measurements of photoluminescence emission from a semiconductor microcavity. For low power laser excitation, low k polariton states are found to have a very small population relative to those at high k. The bottleneck is found to be strongly suppressed at higher powers in the regime of superlinear emission of the lower polariton states. Evidence for the important role of carrier-carrier scattering in suppression of the bottleneck is presented.
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PRB00_RC_bottleneck.pdf
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Published date: 15 July 2000
Organisations:
Nanoelectronics and Nanotechnology
Identifiers
Local EPrints ID: 256714
URI: http://eprints.soton.ac.uk/id/eprint/256714
PURE UUID: c283d8ca-d9ed-4b6b-b52f-04dc212283ff
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Date deposited: 04 Aug 2002
Last modified: 14 Mar 2024 05:46
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Contributors
Author:
A.I. Tartakovskii
Author:
M. Emam-Ismail
Author:
R.M. Stevenson
Author:
M.S. Skolnick
Author:
V.N. Astratov
Author:
D.M. Whittaker
Author:
J.J. Baumberg
Author:
J.S. Roberts
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