Generation of sub-50-fs vacuum ultraviolet pulses by four-wave mixing in argon.
We report on the generation of femtosecond pulses at 160 nm with energies up to 240 nJ at 1 kHz repetition rate and sub-50-fs pulse duration. This pulse energy is a 1-order-of-magnitude improvement compared with previous sub-100-fs sources in this wavelength range. The pulses are generated by four-wave difference-frequency mixing process between the fundamental of a Ti:sapphire laser and its third harmonic in argon. Pulse duration measurements are achieved by pump-probe ionization of Xe gas providing the cross correlation between the fifth harmonic and the fundamental.
Beutler
Marcus
M
Max-Born-Institute for Nonlinear Optics and Ultrafast Spectroscopy, Max-Born-Strasse 2a, 12489 Berlin, Germany. beutler@mbi-berlin.de
Ghotbi
Masood
M
Noack
Frank
F
Hertel
Ingolf Volker
IV
D001128:Argon; D004867:Equipment Design; D007834:Lasers; D017785:Photons; D013997:Time Factors; D014466:Ultraviolet Rays; D014618:Vacuum
D001128:Argon