%0 Journal Article
%A Hariton, Victor
%A Jiang, Yujiao
%A Schönberg, Arthur
%A Seidel, Marcus
%A Wieland, Marek
%A Prandolini, Mark
%A Hartl, Ingmar
%A Drescher, Markus
%A Heyl, Christoph
%T UV 30 fs laser pulse generation using a multi-pass cell
%J Optics letters
%V 49
%N 13
%@ 0146-9592
%C Washington, DC
%I Optica Publishing Group
%M PUBDB-2024-04762
%P 3769
%D 2024
%Z L:MB
%X Ultrashort ultraviolet (UV) pulses are pivotal for resolving ultrafast electron dynamics. However, their efficient generation is strongly impeded by material dispersion and two-photon absorption, in particular if pulse durations around a few 10s of femtoseconds or below are targeted. Here, we present a new approach to ultrashort UV pulse generation: using the fourth harmonic generation output of a commercial ytterbium laser system delivering 220 fs UV pulses, we implement a multi-pass cell (MPC) providing 5.6 μJ pulses at 256 nm, compressed to 30.5 fs. Our results set a new short-wavelength record for MPC post-compression while offering attractive options to navigate the trade-off between up-conversion efficiency and acceptance bandwidth for UV pulse production.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 38950263
%U <Go to ISI:>//WOS:001294036200005
%R 10.1364/OL.527988
%U https://bib-pubdb1.desy.de/record/610955