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High-order parametric generation of coherent XUV radiation
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SYSNO ASEP 0548574 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title High-order parametric generation of coherent XUV radiation Author(s) Hort, Ondřej (FZU-D) ORCID
Dubrouil, A. (FR)
Khokhlova, M. A. (DE)
Descamps, D. (FR)
Petit, S. (FR)
Burgy, F. (FR)
Mével, E. (FR)
Constant, E. (FR)
Strelkov, V. V. (RU)Number of authors 9 Source Title Optics Express. - : Optical Society of America - ISSN 1094-4087
Roč. 29, č. 4 (2021), s. 5982-5992Number of pages 11 s. Language eng - English Country US - United States Keywords high-harmonic-generation ; laser-pulses ; emission ; phase ; amplification Subject RIV BE - Theoretical Physics OECD category Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect) R&D Projects EE2.3.20.0279 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_019/0000789 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2015065 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LQ1606 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure ELI Beamlines III - 90141 - Fyzikální ústav AV ČR, v. v. i. Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000619209800107 EID SCOPUS 85101230552 DOI 10.1364/OE.418449 Annotation Extreme ultraviolet (XUV) radiation finds numerous applications in spectroscopy. When the XUV light is generated via high-order harmonic generation (HHG), it may be produced in the form of attosecond pulses, allowing access to unprecedented ultrafast phenomena. However, the HHG efficiency remains limited. Here we present an observation of a new regime of coherent XUV emission which has a potential to provide higher XUV intensity, vital for applications. We explain the process by high-order parametric generation, involving the combined emission of THz and XUV photons, where the phase matching is very robust against ionization. This introduces a way to use higher-energy driving pulses, thus generating more XUV photons. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address https://doi.org/10.1364/OE.418449
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