Laboratoire Charles Coulomb UMR 5221 CNRS/UM2 (L2C)


Accueil > La Recherche > Axes & Equipes > Physique de l’Exciton, du Photon & du Spin > Optique des états collectifs et des spins (OECS) > Etats collectifs dans les semiconducteurs > Physics of microcavities : spin dynamics, polariton condensates and lasers

Physics of microcavities : spin dynamics, polariton condensates and lasers

The control of the coupling between photons and excitons is an expanding research domain standing at the frontier between many fields of condensed matter physics : nano-technologies, theory of electromagnetism and quantum optics, nonlinear optics.

Our research is focused on the fundamental features and the applied prospects related to polariton microcavities, from spin-dependent polariton interactions to polariton lasers, polariton condensates and polariton devices.


Polariton condensates in GaN and ZnO microcavities

Polariton condensates in microcavities form a model system for the realization and control of collective quantum states, inspired from atomic condensates. GaN and ZnO are semiconducting materials (...)

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n-GaAs microcavity as a tool non-perturbing nuclear spin detection

We report on the nondestructive measurement of nuclear magnetization in n-GaAs via cavity enhanced Faraday rotation. In contrast with the existing optical methods, this detection scheme does not (...)

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n-GaAs microcavity as an efficient Faraday rotator

Faraday rotation up to 19◦ in the absence of an external magnetic field is demonstrated in an n-type bulk GaAs microcavity under circularly polarized optical excitation. This strong effect is (...)

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Interaction polariton-polariton dependents de spin

Resonant transmission of light through a microcavity in the strong coupling regime is used to estimate the strength of the interaction between polaritons with parallel or antiparallel spins. (...)

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