title: Coherent effects in pump-probe spectroscopy of excitons.
abstract: Femtosecond measurements of coherent effects arising from exciton bleaching in bulk GaAs are reported. This phenomenon, which is characterized by spectral oscillatory structures, is general and appears whenever the temporal resolution is shorter than the material coherence time. This is shown to be a manifestation of the uncertainty relation in time-resolved spectroscopy.
authors.affiliation: Laboratoire d'Optique Appliquée, Ecole Nationale Supérieure Techniques Avancées-Ecole Polytechnique, 91120 Palaiseau, France.
authors.forename: M
authors.initials: M
authors.lastname: Joffre
authors.forename: D
authors.initials: D
authors.lastname: Hulin
authors.forename: A
authors.initials: A
authors.lastname: Migus
authors.forename: A
authors.initials: A
authors.lastname: Antonetti
authors.forename: C
authors.initials: C
authors.lastname: Benoit à la Guillaume
authors.forename: N
authors.initials: N
authors.lastname: Peyghambarian
authors.forename: M
authors.initials: M
authors.lastname: Lindberg
authors.forename: S W
authors.initials: SW
authors.lastname: Koch