Abstract:
:We present a table-top beamline providing a soft X-ray supercontinuum extending up to 370 eV from high-order harmonic generation with sub-13 fs 1300 nm driving pulses and simultaneous production of sub-5 fs pulses centered at 800 nm. Optimization of high harmonic generation in a long and dense gas medium yields a photon flux of ~ 1.4 × 106 photons/s/1% bandwidth at 300 eV. The temporal resolution of X-ray transient absorption experiments with this beamline is measured to be 11 fs for 800 nm excitation. This dual-wavelength approach, combined with high flux and high spectral and temporal resolution soft X-ray absorption spectroscopy, is a new route to the study of ultrafast electronic dynamics in carbon-containing molecules and materials at the carbon K-edge.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Barreau L,Ross AD,Garg S,Kraus PM,Neumark DM,Leone SRdoi
10.1038/s41598-020-62461-6subject
Has Abstractpub_date
2020-04-01 00:00:00pages
5773issue
1issn
2045-2322pii
10.1038/s41598-020-62461-6journal_volume
10pub_type
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