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Propagation-enhanced generation of intense high-harmonic continua in the 100-eV spectral region

Rivas, Daniel (author)
Max-Planck-Institut fur Quantenoptik, Garching, Germany
Major, Balazs (author)
Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
Weidman, Matthew (author)
Max-Planck-Institut fur Quantenoptik, Garching, Germany
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Helml, Wofram (author)
Fakultat fur Physik, Ludwig-Maximilians-Universitat Munchen, Garching, Germany; Physics Department, Technische Universität München, Garching, Germany
Marcus, Gilad (author)
Max-Planck-Institut fur Quantenoptik, Garching, Germany; Department of Applied Physics, The Hebrew University of Jerusalem, Jerusalem, Israel
Kienberger, Reinhard (author)
Max-Planck-Institut fur Quantenoptik, Garching, Germany; Physics Department, Technische Universität München, Garching, Germany
Charalambidis, Dimitris (author)
ELI-ALPS, ELI-HU Non-Profit Ltd., Szeged, Hungary; FORTH-IESL, Heraklion, Crete, Greece; Department of Physics, University of Crete, Heraklion, Crete, Greece
Tzallas, Paris (author)
ELI-ALPS, ELI-HU Non-Profit Ltd., Hungary; FORTH-IESL, Heraklion, Crete, Greece
Balogh, Emeric (author)
Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
Kovacs, Katalin (author)
National Institute for R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
Tosa, Valer (author)
National Institute for R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
Bergues, Boris (author)
Max-Planck-Institut fur Quantenoptik, Garching, Germany; Fakultät für Physik, Ludwig-Maximilians-Universität München, Garching, Germany
Varju, Katalin (author)
Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary; ELI-ALPS, ELI-HU Non-Profit Ltd., Szeged, Hungary
Veisz, Laszlo (author)
Umeå universitet,Institutionen för fysik,Max-Planck-Institut für Quantenoptik, Garching, Germany
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 (creator_code:org_t)
2018
2018
English.
In: Optica. - 2334-2536. ; 5:10, s. 1283-1289
Related links:
https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The study of core electron dynamics through nonlinear spectroscopy requires intense isolated attosecond extremeultraviolet or even X-ray pulses. A robust way to produce these pulses is high-harmonic generation (HHG) in agas medium. However, the energy upscaling of the process depends on a very demanding next-generation laser technologythat provides multi-terawatt (TW) laser pulses with few-optical-cycle duration and controlled electric field.Here, we revisit the HHG process driven by 16-TW sub-two-cycle laser pulses to reach high intensity in the 100-eVspectral region and beyond. We show that the combination of above barrier-suppression intensity with a long generationmedium significantly enhances the isolation of attosecond pulses compared to lower intensities and/or shortermedia and this way reduces the pulse duration as well as field-stability requirements on the laser driver. This novelregime facilitates the real-time observation of electron dynamics at the attosecond timescale in atoms, molecules, andsolids.

Subject headings

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

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