Exciton-exciton correlation in the ultrafast nonlinear optical response in the nonperturbative regime

Savasta, Salvatore and Di Stefano, Omar and Girlanda, Raffaello (2001) Exciton-exciton correlation in the ultrafast nonlinear optical response in the nonperturbative regime. Quantum Electronics and Laser Science Conference, Wednesday afternoon. pp. 136-137.

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Abstract

The ultrafast nonlinear optical response of semiconductor-microcavities (SMCs) in the nonperturbative regime is attracting growing interest for exploring fundamental light-matter interactions in many-particle quantum systems, as well as for the future implementations of ultrafast photonic devices. In spite of many investigations, the coherent dynamics of excitonic nonlinear-response in the nonperturbative regime has not been fully understood. Open questions are how strong exciton-cavity coupling affects exciton-exciton (X-X) interactions, and how in turn the X-X correlation influences the nonlinear response of SmCs. We investigate these open questions and show that the nonperturbative regime provides an unprecedented tool for investigating four-particle correlations.We start from the equations for the third order exciton polarization and cavity field describing quantum optical effects and coherent nonlinear optics in SMCs, perform the semiclassical factorization and include multiple scattering processes.

Item Type: Article
Subjects: M.U.S. - Contributi Scientifici > 02 - Scienze fisiche
Depositing User: Stage ICCU
Date Deposited: 25 May 2005
Last Modified: 13 Apr 2010 09:39
URI: http://cab.unime.it/mus/id/eprint/287

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