title: Propagation effects in electro-optic sampling of terahertz pulses in GaAs.
abstract: Freely propagating terahertz pulses are detected in the time domain by electro-optic sampling in bulk GaAs. We investigate the influence of dispersion of the near-infrared sampling pulse on the transients by varying the thickness of the GaAs crystal. Pronounced propagation effects are identified that originate from the frequency dependence of the phase-matching condition between the terahertz and the sampling pulse.
authors.affiliation: Institut für Halbleitertechnik II, Rheinisch-Westfälische Technische Hochschule Aachen, Sommerfeldstrasse 24, D-52056 Aachen, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Vossebürger
authors.forename: M
authors.initials: M
authors.lastname: Brucherseifer
authors.forename: G C
authors.initials: GC
authors.lastname: Cho
authors.forename: H G
authors.initials: HG
authors.lastname: Roskos
authors.forename: H
authors.initials: H
authors.lastname: Kurz