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Stimulated scattering and lasing of intersubband cavity polaritons

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 spontaneous emission of optical phonons. Our theory demonstrates the possibility of final-state stimulation for the scattering of such composite excitations, accounting for the deviations from perfect bosonicity occurring at high excitation densities. By using realistic parameters for a GaAs semiconductor system, we predict how to achieve a quantum degenerate regime, leading to ultralow threshold lasing without population inversion.
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Contributor : Cristiano Ciuti Connect in order to contact the contributor
Submitted on : Tuesday, June 10, 2008 - 5:06:40 PM
Last modification on : Thursday, March 17, 2022 - 10:08:08 AM
Long-term archiving on: : Friday, May 28, 2010 - 6:35:12 PM


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  • HAL Id : hal-00287084, version 1
  • ARXIV : 0806.1691


Simone de Liberato, Cristiano Ciuti. Stimulated scattering and lasing of intersubband cavity polaritons. Physical Review Letters, American Physical Society, 2009, 102, pp.136403. ⟨hal-00287084⟩



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