Multiple ionization of argon via multi-XUV-photon absorption induced by 20-GW high-order harmonic laser pulses
| Autor: | B. Bodi, C. Kalpouzos, E. Skantzakis, Paraskevas Tzallas, I. Orfanos, D. Charalambidis, H. I. B. Banks, I. Makos, Sergei Kühn, A. Nayak, Mathieu Dumergue, Agapi Emmanouilidou, Katalin Varjú |
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| Jazyk: | angličtina |
| Předmět: |
Physics
Photon Argon Free-electron laser chemistry.chemical_element Laser 01 natural sciences law.invention 010309 optics chemistry Physics::Plasma Physics law Extreme ultraviolet Ionization 0103 physical sciences Physics::Atomic and Molecular Clusters High harmonic generation Atomic physics 010306 general physics Absorption (electromagnetic radiation) |
| Zdroj: | Physical Review A |
| ISSN: | 2469-9934 2469-9926 |
| DOI: | 10.1103/physreva.98.023426 |
| Popis: | We report the observation of multiple ionization of argon through multi-XUV-photon absorption induced by an unprecedentedly powerful laser driven high-order harmonic generation source. Comparing the measured intensity dependence of the yield of the different argon charge states with numerical calculations we can infer the different channels---direct and sequential---underlying the interaction. While such studies were feasible so far only with free electron laser (FEL) sources, this paper connects highly nonlinear XUV processes with the ultrashort time scales inherent to the harmonic pulses and highlights the advanced perspectives of emerging large scale laser research infrastructures. |
| Databáze: | OpenAIRE |
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