We present a full analysis of exciton dynamics in a GaAs lambda/2 bulk microcavity following excitation by ultrafast laser pulses. Coherent dynamics was probed by means of an interferometric technique; beating and dephasing times were studied for various excitation intensities. At high incident power, population effects begin to show up reducing exciton oscillator strength and suppressing Rabi splitting. This feature produces marked non-linearities in the input-output characteristic of the optical functions, which were studied in view of reaching bistable operation. Theoretical calculations performed within the transfer-matrix framework show good agreement with experimental results.

Exciton-polariton dynamics in a GaAs bulk microcavity / S. Ceccherini; M. Gurioli; F. Bogani; M. Colocci; A. Tredicucci; Bassani F.; F. Beltram; L. Sorba;. - In: SUPERLATTICES AND MICROSTRUCTURES. - ISSN 0749-6036. - STAMPA. - 23:(1998), pp. 177-180. [10.1006/spmi.1996.0277]

Exciton-polariton dynamics in a GaAs bulk microcavity

GURIOLI, MASSIMO;BOGANI, FRANCO;COLOCCI, MARCELLO;
1998

Abstract

We present a full analysis of exciton dynamics in a GaAs lambda/2 bulk microcavity following excitation by ultrafast laser pulses. Coherent dynamics was probed by means of an interferometric technique; beating and dephasing times were studied for various excitation intensities. At high incident power, population effects begin to show up reducing exciton oscillator strength and suppressing Rabi splitting. This feature produces marked non-linearities in the input-output characteristic of the optical functions, which were studied in view of reaching bistable operation. Theoretical calculations performed within the transfer-matrix framework show good agreement with experimental results.
1998
23
177
180
S. Ceccherini; M. Gurioli; F. Bogani; M. Colocci; A. Tredicucci; Bassani F.; F. Beltram; L. Sorba;
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/737726
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