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In a DBR microcavity with quantum wells embedded, strong coupling between excitons inside the quantum wells with the microcavity photons results in a new particle called exciton polariton. These bosonic particles are partly light and partly matter, thus they can be seen as an effective nonlinearity for light. Because of their bosonic lightweight nature, stimulated scattering into a certain state occurs...
Semiconductor microcavities can be engineered to produce strong coupling between photons and quantum well excitons leading to the formation of new eigenstates called polaritons. Due to their peculiar dispersion, enabling non-equilibrium Bose-Einstein condensation [1], and their straightforward experimental accessibility, microcavity polaritons have gained considerable interest in recent years. Polariton...
Several theoretical studies have recently suggested that the scattering of microcavity polaritons can be a source of non-classical photon correlations, producing photon pairs that are entangled in either the energy (branch index) [1], or the polarization degree of freedom [2]. Even cluster states can be generated [3]. Motivated by the above-mentioned proposals for the creation of entangled photon...
In this paper, we present a novel experimental scheme for the complete control of photoexcitation of microcavity polaritons. We show that this method can easily be adapted to generating either polarisation or frequency entangled photons.
In this paper, we present a novel experimental scheme, and discuss our first results on the generation of entangled photons based on microcavity polaritons. The method utilises the complete phase-space control of the excitation beams.
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