title: Three-wave mixing mediated femtosecond pulse compression in β-barium borate.
abstract: Nonlinear pulse compression mediated by three-wave mixing is demonstrated for ultrashort Ti:sapphire pulses in a type II phase-matched β-barium borate (BBO) crystal using noncollinear geometry. 170 μJ pulses at 800 nm with a pulse duration of 74 fs are compressed at their sum frequency to 32 fs with 55 μJ of pulse energy. Experiments and computer simulations demonstrate the potential of sum-frequency pulse compression to match the group velocities of the interacting waves to crystals that were initially not considered in the context of nonlinear pulse compression.
authors.forename: A
authors.initials: A
authors.lastname: Grün
authors.forename: Dane R
authors.initials: DR
authors.lastname: Austin
authors.forename: Seth L
authors.initials: SL
authors.lastname: Cousin
authors.forename: J
authors.initials: J
authors.lastname: Biegert