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Α 10-gigawatt attosecond source for non-linear XUV optics and XUV-pump-XUV-probe studies.

Abstract：

:The quantum mechanical motion of electrons and nuclei in systems spatially confined to the molecular dimensions occurs on the sub-femtosecond to the femtosecond timescales respectively. Consequently, the study of ultrafast electronic and, in specific cases, nuclear dynamics requires the availability of light pulses with attosecond (asec) duration and of sufficient intensity to induce two-photon processes, essential for probing the intrinsic system dynamics. The majority of atoms, molecules and solids absorb in the extreme-ultraviolet (XUV) spectral region, in which the synthesis of the required attosecond pulses is feasible. Therefore, the XUV spectral region optimally serves the study of such ultrafast phenomena. Here, we present a detailed review of the first 10-GW class XUV attosecond source based on laser driven high harmonic generation in rare gases. The pulse energy of this source largely exceeds other laser driven attosecond sources and is comparable to the pulse energy of femtosecond Free-Electron-Laser (FEL) XUV sources. The measured pulse duration in the attosecond pulse train is 650 ± 80 asec. The uniqueness of the combined high intensity and short pulse duration of the source is evidenced in non-linear XUV-optics experiments. It further advances the implementation of XUV-pump-XUV-probe experiments and enables the investigation of strong field effects in the XUV spectral region.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Makos I,Orfanos I,Nayak A,Peschel J,Major B,Liontos I,Skantzakis E,Papadakis N,Kalpouzos C,Dumergue M,Kühn S,Varju K,Johnsson P,L'Huillier A,Tzallas P,Charalambidis D

doi

10.1038/s41598-020-60331-9

subject

Has Abstract

pub_date

2020-02-28 00:00:00

pages

3759

issue

1

issn

2045-2322

pii

10.1038/s41598-020-60331-9

journal_volume

10

pub_type

杂志文章

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