Self-probing spectroscopy of XUV photo-ionization dynamics in atoms subjected to a strong-field environment
| Autor: | Gal Orenstein, Nirit Dudovich, Henrik Larsson, Michael Krüger, Barry D. Bruner, S. Bauch, Doron Azoury |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Photon
Field (physics) Attosecond Science General Physics and Astronomy 02 engineering and technology Electron 01 natural sciences General Biochemistry Genetics and Molecular Biology Article law.invention law Ionization 0103 physical sciences Physics::Atomic and Molecular Clusters Physics::Atomic Physics 010306 general physics Spectroscopy lcsh:Science Physics Multidisciplinary General Chemistry 021001 nanoscience & nanotechnology Laser Extreme ultraviolet lcsh:Q Atomic physics 0210 nano-technology |
| Zdroj: | Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017) Nature Communications |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/s41467-017-01723-w |
| Popis: | Single-photon ionization is one of the most fundamental light matter interactions in nature, serving as a universal probe of the quantum state of matter. By probing the emitted electron, one can decode the full dynamics of the interaction. When photo-ionization is evolving in the presence of a strong laser field, the fundamental properties of the mechanism can be signicantly altered. Here we demonstrate how the liberated electron can perform a self-probing measurement of such interaction with attosecond precision. Extreme ultraviolet attosecond pulses initiate an electron wavepacket by photo-ionization, a strong infrared field controls its motion, and finally electron–ion collision maps it into re-emission of attosecond radiation bursts. Our measurements resolve the internal clock provided by the self-probing mechanism, obtaining a direct insight into the build-up of photo-ionization in the presence of the strong laser field. Single photon ionization—one of the most fundamental light matter interactions—can be significantly altered in a strong-field environment. Here the authors demonstrate a self-probing spectroscopy technique, resolving the evolution of the interaction in helium atoms with attosecond precision. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|