Non-linear coupling of polariton and dark exciton states in semiconductor microcavities

I. A. Shelykh; L. Viña; A. V. Kavokin; N. G. Galkin; G. Malpuech; R. André

doi:10.1016/j.ssc.2005.04.012

Non-linear coupling of polariton and dark exciton states in semiconductor microcavities

I. A. Shelykh, L. Viña^*, A. V. Kavokin, N. G. Galkin, G. Malpuech, R. André

^*Corresponding author for this work

Faculty of Physical Sciences

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

We report a new mechanism of non-linear coupling of optically active and dark crystal states. We observe experimentally pronounced beats of the intensity of photoluminescence from a bottleneck region of the exciton-polariton band in a microcavity in the strong coupling regime and at strong pumping. These beats are extremely sensitive to the pumping intensity and vanish for weak pumping. We show theoretically that coherent polariton-polariton scattering which leads to the mixing between bright and dark exciton states can be responsible for this effect.

Original language	English
Pages (from-to)	1-6
Number of pages	6
Journal	Solid State Communications
Volume	135
Issue number	1-2
DOIs	https://doi.org/10.1016/j.ssc.2005.04.012
Publication status	Published - Jul 2005

Bibliographical note

Funding Information:
This work has been partially supported by the Spanish MCYT (MAT2002-00139), the CAM (GR/MAT/0099/2004) and the ‘Marie–Curie’ MRTN-CT-2003-503677 ‘Clermont2’ (‘Physics of Microcavities’). A.K. and G.M. acknowledge the support of the European Research Office of the US Army, contract number N62558-03-M0803.

Other keywords

A. Microcavities
D. Bottleneck
D. Coherence
D. Dark excitons
D. Polaritons
D. Quantum beats
E. Time-resolved spectroscopy

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10.1016/j.ssc.2005.04.012

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@article{c276c6ff6f374984845a29f86157a904,

title = "Non-linear coupling of polariton and dark exciton states in semiconductor microcavities",

abstract = "We report a new mechanism of non-linear coupling of optically active and dark crystal states. We observe experimentally pronounced beats of the intensity of photoluminescence from a bottleneck region of the exciton-polariton band in a microcavity in the strong coupling regime and at strong pumping. These beats are extremely sensitive to the pumping intensity and vanish for weak pumping. We show theoretically that coherent polariton-polariton scattering which leads to the mixing between bright and dark exciton states can be responsible for this effect.",

keywords = "A. Microcavities, D. Bottleneck, D. Coherence, D. Dark excitons, D. Polaritons, D. Quantum beats, E. Time-resolved spectroscopy",

author = "Shelykh, {I. A.} and L. Vi{\~n}a and Kavokin, {A. V.} and Galkin, {N. G.} and G. Malpuech and R. Andr{\'e}",

note = "Funding Information: This work has been partially supported by the Spanish MCYT (MAT2002-00139), the CAM (GR/MAT/0099/2004) and the {\textquoteleft}Marie–Curie{\textquoteright} MRTN-CT-2003-503677 {\textquoteleft}Clermont2{\textquoteright} ({\textquoteleft}Physics of Microcavities{\textquoteright}). A.K. and G.M. acknowledge the support of the European Research Office of the US Army, contract number N62558-03-M0803.",

year = "2005",

month = jul,

doi = "10.1016/j.ssc.2005.04.012",

language = "English",

volume = "135",

pages = "1--6",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd.",

number = "1-2",

}

TY - JOUR

T1 - Non-linear coupling of polariton and dark exciton states in semiconductor microcavities

AU - Shelykh, I. A.

AU - Viña, L.

AU - Kavokin, A. V.

AU - Galkin, N. G.

AU - Malpuech, G.

AU - André, R.

N1 - Funding Information: This work has been partially supported by the Spanish MCYT (MAT2002-00139), the CAM (GR/MAT/0099/2004) and the ‘Marie–Curie’ MRTN-CT-2003-503677 ‘Clermont2’ (‘Physics of Microcavities’). A.K. and G.M. acknowledge the support of the European Research Office of the US Army, contract number N62558-03-M0803.

PY - 2005/7

Y1 - 2005/7

N2 - We report a new mechanism of non-linear coupling of optically active and dark crystal states. We observe experimentally pronounced beats of the intensity of photoluminescence from a bottleneck region of the exciton-polariton band in a microcavity in the strong coupling regime and at strong pumping. These beats are extremely sensitive to the pumping intensity and vanish for weak pumping. We show theoretically that coherent polariton-polariton scattering which leads to the mixing between bright and dark exciton states can be responsible for this effect.

AB - We report a new mechanism of non-linear coupling of optically active and dark crystal states. We observe experimentally pronounced beats of the intensity of photoluminescence from a bottleneck region of the exciton-polariton band in a microcavity in the strong coupling regime and at strong pumping. These beats are extremely sensitive to the pumping intensity and vanish for weak pumping. We show theoretically that coherent polariton-polariton scattering which leads to the mixing between bright and dark exciton states can be responsible for this effect.

KW - A. Microcavities

KW - D. Bottleneck

KW - D. Coherence

KW - D. Dark excitons

KW - D. Polaritons

KW - D. Quantum beats

KW - E. Time-resolved spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=19144369846&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2005.04.012

DO - 10.1016/j.ssc.2005.04.012

M3 - Article

AN - SCOPUS:19144369846

SN - 0038-1098

VL - 135

SP - 1

EP - 6

JO - Solid State Communications

JF - Solid State Communications

IS - 1-2

ER -

Non-linear coupling of polariton and dark exciton states in semiconductor microcavities

Abstract

Bibliographical note

Other keywords

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