activity
20162025
most citedBright, high-repetition-rate water window soft X-ray source enabled by nonlinear pulse self-compression in an antiresonant hollow-core fibre

61 citations · 113 across the 6 of their papers we have counts for

collaborators

7 papers

physics.optics2025

Unleashing HHG Efficiency: The Role of Driving Pulse Duration

Robert Klas, Martin Gebhardt, Jan Rothhardt +1

High harmonic generation (HHG) is a crucial technology for compact, high-brightness extreme ultraviolet (XUV) and soft X-ray sources, which are key to advancing both fundamental an…

physics.atom-ph2025

Laser-driven high-flux source of coherent quasi-monochromatic extreme ultraviolet radiation for coincidence spectroscopy

Julian Späthe, Sebastian Hell, Martin Wünsche +6

We present a source of coherent extreme ultraviolet (XUV) radiation with a flux of 10 photons per second at 26.5 eV. The source is based on high-harmonic generation (HHG) in…

physics.atom-ph2025

Coincidence measurement of two-photon double ionization of argon through an autoionizing resonance

Sebastian Hell, Julian Späthe, Morten Førre +8

We present coincidence measurements of two-photon double-ionization (TPDI) of argon driven by femtosecond pulses tunable around 26.5 eV photon energy, which are obtained from a hig…

physics.bio-ph2025

Quantitative EUV ptychography reveals nanoscale morphological responses of bacteria under physiological and antibiotic stress

Chang Liu, Leona Licht, Christina Wichmann +7

Table-top extreme ultraviolet (EUV) ptychography enables nanoscale, label-free, and quantitative imaging with intrinsic elemental sensitivity, offering a unique modality for subcel…

physics.atom-ph2021★ 7 cited

Table-top interferometry on extreme time and wavelength scales

S. Skruszewicz, A. Przystawik, D. Schwickert +12

High-resolution Fourier-transform spectroscopy using table-top sources in the extreme ultraviolet (XUV) spectral range is still in its infancy. In this contribution a significant a…

physics.optics2020★ 61 cited

Bright, high-repetition-rate water window soft X-ray source enabled by nonlinear pulse self-compression in an antiresonant hollow-core fibre

M. Gebhardt, T. Heuermann, R. Klas +10

Bright, coherent soft X-ray (SXR) radiation is essential to a variety of applications in fundamental research and life sciences. So far, high photon flux in this spectral region ca…

physics.optics2016★ 45 cited

High Speed and High Resolution Table-Top Nanoscale Imaging

G. K. Tadesse, R. Klas, S. Demmler +8

We present a table-top coherent diffraction imaging (CDI) experiment based on high-order harmonics generated at 18 nm by a high average power femtosecond fiber laser system. The hi…