Abstract : A coherently driven exciton–biexciton transition in CuCl enables one to propagate a probe light beam within the exciton-polariton stop-band where radiation is otherwise completely reflected. The stop-band transparency window can be controlled via the pump beam frequency and intensity. The phenomenon is reminiscent of quantum coherence effects occurring in three-level atomic systems, except that it here involves delocalized electronic excitations in a crystal via a frequency and wave-vector selective polaritonic mechanism. Both a free standing slab and a microcavity configuration are theoretically studied.
https://hal-polytechnique.archives-ouvertes.fr/hal-00565595
Contributor : Thuy Le
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Submitted on : Monday, February 14, 2011 - 10:21:07 AM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM
S. Chesi, M. Artoni, G. La Rocca, F. Bassani, André Mysyrowicz. Exciton–biexciton quantum coherence and polaritonic stop-band transparency in CuCl. physica status solidi (c), Wiley, 2004, 1 (3), pp.497-500. ⟨10.1002/pssc.200304009⟩. ⟨hal-00565595⟩
