title: Phase evolution of solitonlike optical pulses during excitonic Rabi flopping in a semiconductor.
abstract: We demonstrate that the temporal pulse phase remains essentially unaltered before separate phase characteristics are developed when propagating high-intensity pulses coherently on the exciton resonance of an optically thick semiconductor. This behavior is a clear manifestation of self-induced transmission and pulse breakup into soliton-like pulses due to Rabi flopping of the carrier density. Experiments using a novel fast-scan cross-correlation frequency-resolved optical gating (XFROG) method are in good agreement with numerical calculations based on the semiconductor Bloch equations.
authors.affiliation: Max-Planck-Institut für Festkörperforschung, 70569 Stuttgart, Germany. n.nielsen@fkf.mpg.de
authors.forename: N C
authors.initials: NC
authors.lastname: Nielsen
authors.forename: T
authors.initials: T
authors.lastname: Höner zu Siederdissen
authors.forename: J
authors.initials: J
authors.lastname: Kuhl
authors.forename: M
authors.initials: M
authors.lastname: Schaarschmidt
authors.forename: J
authors.initials: J
authors.lastname: Förstner
authors.forename: A
authors.initials: A
authors.lastname: Knorr
authors.forename: H
authors.initials: H
authors.lastname: Giessen