Open AccessWidely tunable sub-30 fs ultraviolet pulses by chirped sum frequency mixing
Author(s) -
Ida Z. Kozma,
Peter Baum,
Stefan Lochbrunner,
Eberhard Riedle
Publication year - 2003
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.003110
Subject(s) - optics , materials science , four wave mixing , optical parametric amplifier , sum frequency generation , amplifier , regenerative amplification , ultrashort pulse , ultraviolet , chirped pulse amplification , chirp , sapphire , prism compressor , mixing (physics) , nonlinear optics , optoelectronics , optical amplifier , laser , physics , bandwidth limited pulse , cmos , quantum mechanics
A novel scheme for the generation of UV pulses in the 295 - 450 nm range is presented. Sum frequency mixing of the chirped visible pulses from a noncollinear optical parametric amplifier with deliberately chirped pulses from the Ti:sapphire amplifier ensures efficient energy conversion and easy tunability. Pulse energies as high as 5.5 J at 295 nm, and >2 J in most of the tuning range are obtained with highly symmetric and smooth spectra. They are compressed to sub-30 fs throughout the entire tuning range (20 fs at 348 nm) with a newly designed prism compressor.