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Articles by Campus Polytechnique

Effective-density-matrix approach for intersubband plasmons coupled to a cavity field: Electrical extraction and injection of intersubband polaritons

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By III-V Lab, Campus Polytechnique, M. Lagrée, Augustin Fresnel
| Physical Review B
The main technological obstacle hampering the dissemination of modern optoelectronic devices operating with large light-matter coupling strength Ω is an in-depth comprehension of the carrier current extraction and injection from and into strongly coupled light-matter states, the so-called polaritonic states.
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Time-correlated photons from an ${\mathrm{In}}_{0.5}{\mathrm{Ga}}_{0.5}\mathrm{P}$ photonic crystal cavity on a silicon chip

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By Alexandre Chopin, Thales Research, Université Paris Saclay, Campus Polytechnique
| Physical Review B
Abstract Time-correlated photon pairs are generated by triply resonant four-wave-mixing in an In0.5Ga0.5P photonic crystal cavity. Maximal efficiency is reached by actively compensating for the residual spectral misalignment of the cavity modes. The generation rate reaches 5 MHz in cavities with a Q-factor ≈4×104, more than one order of magnitude larger than what is measured using ring resonators with similar Q factors fabricated on the same chip.
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