Di Stefano, Omar and Savasta, Salvatore and Girlanda, Raffaello (2004) The influence of two-exciton correlations on the dynamics of parametric polariton amplification. Physica Status Solidi (c), 1 (3). pp. 479-483.
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Abstract
We present an overview of our results concerning the influence of two-pair continuum coherences onthe transient nonlinear optical response of semiconductor microcavities. We show that the interplaybetween these 4-particle coherences and the nonperturbative light-matter interaction produces highlydesirable almost decoherence-free exciton-exciton collisions on the lower polariton branch. This effectgives rise to the very different nonlinear absorption rates on the two polariton branches observed inmany experiments and make possible to reach a very-high degree of amplification in samples withlarge Rabi splitting.
Item Type: | Article |
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Subjects: | M.U.S. - Contributi Scientifici > 02 - Scienze fisiche |
Depositing User: | Stage ICCU |
Date Deposited: | 25 May 2005 |
Last Modified: | 13 Apr 2010 11:21 |
URI: | http://cab.unime.it/mus/id/eprint/301 |
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