Get started
Work

Multi-pass cell driven multi-kHz dispersive wave emission of broadband deep-UV pulses

Year: 2025
Type: article
Abstract: In the context of ultrafast spectroscopy, the availability of few-femtosecond UV pulses is key to disclose the role of electron dynamics in photo-activated biochemically relevant processes. Here, we present an optical setup for the generation of UV pulses spectrally tunable between 270 and 350 nm with transform limited durations of 3.0 and 2.9 fs, respectively, and repetition rates up to 50 kHz, using resonant dispersive wave (RDW) emission in an argon-filled hollow-core fiber. The RDW emission is driven by 1030 nm sub-20 fs pulses produced by post-compressing an Yb-based laser with a dispersion-engineered multi-pass cell (MPC). The combination of an MPC with a capillary constitutes a compact source to deliver few-femtosecond UV pulses at high-repetition rates, which is ideal for statistically demanding experiments in molecular physics.
DOI: 10.1063/5.0268188
Authors: Laura Silletti, Ammar bin Wahid, Teodora F. Grigorova, Lorenzo Pratolli, Ana Oliveira e Silva, Nans Hermellin, Terry Mullins, Andrea Trabattoni, Christoph M. Heyl, Christian Brahms, Vincent Wanie, John C. Travers, Francesca Calegari
Institutions: Deutsches Elektronen-Synchrotron DESY, Center for Free-Electron Laser Science, Heriot-Watt University, Universität Hamburg, Hamburg Centre for Ultrafast Imaging, Leibniz University Hannover, Helmholtz Institute Jena, GSI Helmholtz Centre for Heavy Ion Research
Language: English
Open Access status: gold
Estimated APC paid: $2,750
Awards: G2342744236, G2425841151, G2648359190, EXC 2056: CUI: Advanced Imaging of Matter, G6449171986, G7959865600, SFB 925: Lichtinduzierte Dynamik und Kontrolle korrelierter Quantensysteme
OpenAlex ID: W4411958673
FWCI: 1.111
Cites: 23
Cited by: 3
Related to: 10