Generation of sub-3 fs pulses in the deep ultraviolet.
We demonstrate generation and measurement of intense deep-ultraviolet light pulses with a duration of approximately 2.8 fs (FWHM of the intensity envelope) and a wavelength distribution between 230 and 290 nm. They emerge via direct frequency upconversion of sub-4 fs laser pulses of a carrier wavelength of approximately 750 nm focused into an Ne-filled, quasi-static gas cell. Dispersion-free, third-order autocorrelation measurements provide access to their temporal intensity profile.
Reiter
Florentin
F
Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany.
Graf
Ulrich
U
Schultze
Martin
M
Schweinberger
Wolfgang
W
Schröder
Hartmut
H
Karpowicz
Nicholas
N
Azzeer
Abdallah Mohammed
AM
Kienberger
Reinhard
R
Krausz
Ferenc
F
Goulielmakis
Eleftherios
E