TY  - JOUR
AU  - Hariton, Victor
AU  - Jiang, Yujiao
AU  - Schönberg, Arthur
AU  - Seidel, Marcus
AU  - Wieland, Marek
AU  - Prandolini, Mark
AU  - Hartl, Ingmar
AU  - Drescher, Markus
AU  - Heyl, Christoph
TI  - UV 30 fs laser pulse generation using a multi-pass cell
JO  - Optics letters
VL  - 49
IS  - 13
SN  - 0146-9592
CY  - Washington, DC
PB  - Optica Publishing Group
M1  - PUBDB-2024-04762
SP  - 3769
PY  - 2024
N1  - L:MB
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - 38950263
UR  - <Go to ISI:>//WOS:001294036200005
DO  - DOI:10.1364/OL.527988
UR  - https://bib-pubdb1.desy.de/record/610955
ER  -