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Polarization rotation in parametric scattering of polaritons in semiconductor microcavities

Polarization rotation in parametric scattering of polaritons in semiconductor microcavities
Polarization rotation in parametric scattering of polaritons in semiconductor microcavities
Polarization of light emitted by a semiconductor microcavity in the regime of a resonant parametric scattering of the exciton polaritons shows extremely strong and unusual dependence on the polarization of pumping light. This dependence is interpreted here using the pseudospin model and in the framework of a quasiclassical formalism where the parametric scattering is described as resonant four-wave mixing. We show that the optically induced splitting of the exciton-polariton eigenstate, both in linear and circular polarizations, is responsible for the observed polarization effects. The splitting in circular polarizations, achieving 0.5 meV, has been detected experimentally, while the splitting in linear polarizations, which is much weaker, only manifests itself in the pseudospin dynamics of the exciton polaritons.
1550-235X
195321-[9pp]
Kavokin, A.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Lagoudakis, P.G.
ea50c228-f006-4edf-8459-60015d961bbf
Malpuech, G.
da5f02e8-b721-4a4b-a3fc-cb756b396e4a
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Kavokin, A.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Lagoudakis, P.G.
ea50c228-f006-4edf-8459-60015d961bbf
Malpuech, G.
da5f02e8-b721-4a4b-a3fc-cb756b396e4a
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07

Kavokin, A., Lagoudakis, P.G., Malpuech, G. and Baumberg, J.J. (2003) Polarization rotation in parametric scattering of polaritons in semiconductor microcavities. Physical Review B, 67 (19), 195321-[9pp]. (doi:10.1103/PhysRevB.67.195321).

Record type: Article

Abstract

Polarization of light emitted by a semiconductor microcavity in the regime of a resonant parametric scattering of the exciton polaritons shows extremely strong and unusual dependence on the polarization of pumping light. This dependence is interpreted here using the pseudospin model and in the framework of a quasiclassical formalism where the parametric scattering is described as resonant four-wave mixing. We show that the optically induced splitting of the exciton-polariton eigenstate, both in linear and circular polarizations, is responsible for the observed polarization effects. The splitting in circular polarizations, achieving 0.5 meV, has been detected experimentally, while the splitting in linear polarizations, which is much weaker, only manifests itself in the pseudospin dynamics of the exciton polaritons.

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Published date: 20 May 2003
Organisations: Nanoelectronics and Nanotechnology

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Local EPrints ID: 259964
URI: http://eprints.soton.ac.uk/id/eprint/259964
ISSN: 1550-235X
PURE UUID: cc91128b-7e1f-4b63-b0ab-977c2d391335

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Date deposited: 21 Oct 2004
Last modified: 02 Dec 2019 21:09

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