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Luminescence, bruit et effets non linéaires dans les microcavités semi-conductrices

Abstract : The purpose of this work was the study of light-matter interaction in quantum wells semiconductor microcavities. We have studied the coherent response of a semiconductor microcavity optically excited by a quasi-monochromatic CW laser. We have shown the existence of the strong coupling regime between the resonant mode of the cavity and the excitons of the quantum well embedded inside the cavity. Then we have shown that besides the coherent reflected field, the microcavity emits quasi-resonant luminescence. At low temperature (4K), we have shown that this photoluminescence is due to collisions between excitons and the acoustic phonons of the crystal. Finally, we have studied the intensity noise of the outgoing field by means of a homodyne balanced detection. We have shown that the measured noise arises from the incoherent emission of luminescence from the microcavity. We observed that this noise has a nonlinear behaviour coming from interactions between excitons.
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https://tel.archives-ouvertes.fr/tel-00000858
Contributor : Gaétan Messin <>
Submitted on : Friday, January 7, 2005 - 9:05:37 AM
Last modification on : Thursday, October 29, 2020 - 3:01:39 PM
Long-term archiving on: : Monday, September 20, 2010 - 12:15:13 PM

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  • HAL Id : tel-00000858, version 2

Citation

Gaétan Messin. Luminescence, bruit et effets non linéaires dans les microcavités semi-conductrices. Physique Atomique [physics.atom-ph]. Université Pierre et Marie Curie - Paris VI, 2000. Français. ⟨tel-00000858v2⟩

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