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Stimulated scattering and lasing of intersubband cavity polaritons

Stimulated scattering and lasing of intersubband cavity polaritons
Stimulated scattering and lasing of intersubband cavity polaritons
We present a microscopic theory describing the stimulated scattering of intersubband polariton excitations in a microcavity-embedded two-dimensional electron gas. In particular, we consider the polariton scattering induced by the interaction with longitudinal optical phonons. Our theory demonstrates the possibility of final-state stimulation for the scattering of such composite excitations, accounting for the deviations from ideal bosonicity occurring at high excitation densities. By using GaAs parameters, we predict a quantum degenerate regime and lasing without electronic population inversion in an optical pumping configuration.
[4pp.]
De Liberato, Simone
5942e45f-3115-4027-8653-a82667ed8473
Ciuti, Cristiano
07c4515c-526e-41e9-bd97-7e3868505c21
De Liberato, Simone
5942e45f-3115-4027-8653-a82667ed8473
Ciuti, Cristiano
07c4515c-526e-41e9-bd97-7e3868505c21

De Liberato, Simone and Ciuti, Cristiano (2009) Stimulated scattering and lasing of intersubband cavity polaritons. Physical Review Letters, 102 (13), [4pp.]. (doi:10.1103/PhysRevLett.102.136403).

Record type: Article

Abstract

We present a microscopic theory describing the stimulated scattering of intersubband polariton excitations in a microcavity-embedded two-dimensional electron gas. In particular, we consider the polariton scattering induced by the interaction with longitudinal optical phonons. Our theory demonstrates the possibility of final-state stimulation for the scattering of such composite excitations, accounting for the deviations from ideal bosonicity occurring at high excitation densities. By using GaAs parameters, we predict a quantum degenerate regime and lasing without electronic population inversion in an optical pumping configuration.

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Published date: 31 March 2009
Organisations: Quantum, Light & Matter Group

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Local EPrints ID: 351234
URI: http://eprints.soton.ac.uk/id/eprint/351234
PURE UUID: 44f6e03c-0921-4b13-9b2a-e68db60859b4
ORCID for Simone De Liberato: ORCID iD orcid.org/0000-0002-4851-2633

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Date deposited: 17 Apr 2013 14:26
Last modified: 03 Dec 2019 01:36

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Author: Cristiano Ciuti

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