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arXiv · 0907.2813

Exciton polaritons in two-dimensional photonic crystals

Daniele Bajoni·Dario Gerace·Matteo Galli·Jacqueline Bloch·Remy Braive·Isabelle Sagnes·Audrey Miard·Aristide Lemaître·Maddalena Patrini·Lucio Claudio Andreani
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Abstract

Experimental evidence of strong coupling between excitons confined in a quantum well and the photonic modes of a two-dimensional dielectric lattice is reported. Both resonant scattering and photoluminescence spectra at low temperature show the anticrossing of the polariton branches, fingerprint of strong coupling regime. The experiments are successfully interpreted in terms of a quantum theory of exciton-photon coupling in the investigated structure. These results show that the polariton dispersion can be tailored by properly varying the photonic crystal lattice parameter, which opens the possibility to obtain the generation of entangled photon pairs through polariton stimulated scattering.

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Daniele Bajoni, Dario Gerace, Matteo Galli, Jacqueline Bloch, Remy Braive, Isabelle Sagnes, Audrey Miard, Aristide Lemaître, Maddalena Patrini, Lucio Claudio Andreani. 2009-07-16. Exciton polaritons in two-dimensional photonic crystals. https://doi.org/10.1103/physrevb.80.201308

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