High-order harmonic spectroscopy in an ionized high-density target
- verfasst von
- Heiko G. Kurz, Martin Kretschmar, Thomas Binhammer, Tamas Nagy, Detlev Ristau, Manfred Lein, Uwe Morgner, Milutin Kovačev
- Abstract
We use high-order harmonic spectroscopy to study ionization dynamics in a macroscopic target with tunable density, spanning over six orders of magnitude. In an in situ pump-probe experiment, the target is prepared at different densities with varying degrees of laser-induced ionization. High-order harmonic radiation is generated in the pre-ionized target, and a steepening in the decrease of the harmonic yield is observed for increasing pre-ionization, allowing not only to identify the contributing quantum paths during high-order harmonic generation but also in determining the amount of ionization within the target. The measurements allow probing of ionization dynamics in laser-induced plasma with high spatio-temporal resolution and are specifically of interest for the optimization of the harmonic generation process in high-density targets with number densities of up to 1022 cm−3.
- Organisationseinheit(en)
-
Institut für Quantenoptik
Fakultät für Mathematik und Physik
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme
- Externe Organisation(en)
-
neoLASE GmbH
Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (MBI)
- Typ
- Artikel
- Journal
- Frontiers in Physics
- Band
- 10
- Publikationsdatum
- 01.11.2022
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Biophysik, Werkstoffwissenschaften (sonstige), Mathematische Physik, Allgemeine Physik und Astronomie, Physikalische und Theoretische Chemie
- Elektronische Version(en)
-
https://doi.org/10.3389/fphy.2022.836287 (Zugang:
Offen)
