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Highly non-linear ionization of atoms induced by intense high-harmonic pulses
- Source :
- JPhys Photonics, 2 (3)
- Publication Year :
- 2020
- Publisher :
- Freie Universität Berlin, 2020.
-
Abstract
- Intense extreme-ultraviolet (XUV) pulses enable the investigation of XUV-induced non-linear processes and are a prerequisite for the development of attosecond pump - attosecond probe experiments. While highly non-linear processes in the XUV range have been studied at free-electron lasers (FELs), high-harmonic generation (HHG) has allowed the investigation of low-order non-linear processes. Here we suggest a concept to optimize the HHG intensity, which surprisingly requires a scaling of the experimental parameters that differs substantially from optimizing the HHG pulse energy. As a result, we are able to study highly non-linear processes in the XUV range using a driving laser with a modest (≈ 10 mJ) pulse energy. We demonstrate our approach by ionizing Ar atoms up to Ar5 + , requiring the absorption of at least 10 XUV photons.<br />JPhys Photonics, 2 (3)<br />ISSN:2515-7647
- Subjects :
- Materials science
500 Naturwissenschaften und Mathematik::530 Physik::539 Moderne Physik
Nonlinear optics
Atomic and Molecular Physics, and Optics
high-harmonic generation
extreme-ultraviolet pulses
non-linear optics
Electronic, Optical and Magnetic Materials
Nonlinear system
Physics::Plasma Physics
Ionization
Harmonic
Physics::Atomic and Molecular Clusters
High harmonic generation
Physics::Atomic Physics
Electrical and Electronic Engineering
Atomic physics
Subjects
Details
- Language :
- English
- ISSN :
- 25157647
- Database :
- OpenAIRE
- Journal :
- JPhys Photonics, 2 (3)
- Accession number :
- edsair.doi.dedup.....8bf976cb4c48dd78dc3d058f3b905185