Electromagnetically induced transparency in bulk and microcavity semiconductors |
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Authors: | F. Bassani G.C. La Rocca M. Artoni |
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Affiliation: | aScuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy;bDipartimento di Chimica e Fisica per l'Ingegneria e per i Materiali, Università di Brescia, Via Valotti 9, 25133 Brescia, Italy |
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Abstract: | We discuss our recent results on electromagnetically induced transparency (EIT) effects based on intrinsic free exciton and biexciton states in semiconductors. The Λ configuration obtained from the 1S and 2P yellow exciton levels of Cu2O leads to a well-developed EIT regime, akin to the atomic case. The coherent driving of the exciton–biexciton transition in CuCl induces a tunable transparency window within the polaritonic stop-band, due to the presence of a third polariton branch in the dressed system. In a microcavity configuration, this gives rise to three reflectivity dips in the strong coupling regime. |
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Keywords: | EIT Exciton Biexciton Polariton Cu2O CuCl |
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