title: Nonlinear femtosecond pump-probe spectroscopy using a power-encoded soliton delay line.
abstract: We show femtosecond time-resolved nonlinear pump-probe spectroscopy using a fiber soliton as the probe pulse. Furthermore, we exploit soliton dynamics to record an entire transient trace with a power-encoded delay sweep. The power-encoded delay line takes advantage of the dependency of the soliton trajectory in the (λ,z) space upon input power; the difference in accumulated group delay between trajectories converts a fast power sweep into a fast delay sweep. We demonstrate the concept by performing transient absorption spectroscopy in a test sample and validate it against a conventional pump-probe setup.
authors.forename: Sarah
authors.initials: S
authors.lastname: Saint-Jalm
authors.forename: Esben Ravn
authors.initials: ER
authors.lastname: Andresen
authors.forename: Abdelkrim
authors.initials: A
authors.lastname: Bendahmane
authors.forename: Alexandre
authors.initials: A
authors.lastname: Kudlinski
authors.forename: Hervé
authors.initials: H
authors.lastname: Rigneault