Publications
HHG at the Carbon K-Edge Directly Driven by SRS Red-Shifted Pulses from an Ytterbium Amplifier
- Author(s)
- Martin Dorner-Kirchner, Valentina Shumakova, Giulio Coccia, Bruno E. Schmidt, Vladimir Pervak, Audrius Pugzlys, Andrius Baltuška, Markus Kitzler-Zeiler, Paolo Antonio Carpeggiani
- Abstract
In this work, we introduce a simplified approach to efficiently extend the high harmonic generation (HHG) cutoff in gases without the need for laser frequency conversion via parametric processes. Instead, we employ postcompression and red-shifting of a Yb:CaF2 laser via stimulated Raman scattering (SRS) in a nitrogen-filled stretched hollow core fiber. This driving scheme circumvents the low-efficiency window of parametric amplifiers in the 1100-1300 nm range. We demonstrate this approach being suitable for upscaling the power of a driver with an optimal wavelength for HHG in the highly desirable XUV range between 200 and 300 eV, up to the carbon K-edge. Due to the combination of power scalability of a low quantum defect ytterbium-based laser system with the high conversion efficiency of the SRS technique, we expect a significant increase in the generated photon flux in comparison with established platforms for HHG in the water window. We also compare HHG driven by the SRS scheme with the conventional self-phase modulation (SPM) scheme.
- Organisation(s)
- Faculty Center for Nano Structure Research
- External organisation(s)
- Technische Universität Wien, Politecnico di Milano, few-cycle Inc., Ludwig-Maximilians-Universität München, Ultrafast Innovations GmbH, Center for Physical Sciences and Technology
- Journal
- ACS Photonics
- Volume
- 10
- Pages
- 84-91
- No. of pages
- 8
- ISSN
- 2330-4022
- DOI
- https://doi.org/10.1021/acsphotonics.2c01021
- Publication date
- 01-2023
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103025 Quantum mechanics
- Keywords
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Biotechnology, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/hhg-at-the-carbon-kedge-directly-driven-by-srs-redshifted-pulses-from-an-ytterbium-amplifier(eb3c84f7-7f3d-46a8-9e39-50607c7886d6).html