Revealing the Microscopic Real-Space Excursion of a Laser-Driven Electron

2016 | journal article. A publication with affiliation to the University of Göttingen.

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​Kurz, H. G., Kretschmar, M., Binhammer, T., Nagy, T., Ristau, D., Lein, M., Morgner, U. ... Kovacev, M. (2016). ​Revealing the Microscopic Real-Space Excursion of a Laser-Driven Electron. Physical Review X6(3), Article 031029​. ​doi: https://doi.org/10.1103/PhysRevX.6.031029 

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Authors
Kurz, Heiko G.; Kretschmar, Martin; Binhammer, Thomas; Nagy, Tamas; Ristau, Detlev; Lein, Manfred; Morgner, Uwe; Kovacev, Milutin
Abstract
High-order harmonic spectroscopy allows one to extract information on fundamental quantum processes, such as the exit time in the tunneling of an electron through a barrier with attosecond time resolution and molecular structure with angstrom spatial resolution. Here, we study the spatial motion of the electron during high-order harmonic generation in an in situ pump-probe measurement using high-density liquid water droplets as a target. We show that molecules adjacent to the emitting electron-ion pair can disrupt the electron's trajectory when positioned within the range of the maximum electronic excursion distance. This allows us to use the parent ion and the neighboring molecules as boundaries for the electronic motion to measure the maximum electronic excursion distance during the high-order harmonic generation process. Our analysis of the process is relevant for optimizing high-harmonic yields in dense media.
Issue Date
2016
Status
published
Publisher
Amer Physical Soc
Journal
Physical Review X 
ISSN
2160-3308

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