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  Enhanced extreme ultraviolet high-harmonic generation from chromium-doped magnesium oxide

Nefedova, V. E., Fröhlich, S., Navarrete, F., Tancogne-Dejean, N., Franz, D., Hamdou, A., et al. (2021). Enhanced extreme ultraviolet high-harmonic generation from chromium-doped magnesium oxide. Applied Physics Letters, 118(20): 201103. doi:10.1063/5.0047421.

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https://dx.doi.org/10.1063/5.0047421 (Publisher version)
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https://arxiv.org/abs/2001.00839 (Preprint)
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 Creators:
Nefedova, V. E.1, Author
Fröhlich, S.1, Author
Navarrete, F.2, 3, Author
Tancogne-Dejean, N.4, 5, Author              
Franz, D.1, Author
Hamdou, A.1, Author
Kaassamani, S.1, Author
Gauthier, D.1, Author
Nicolas, R.1, 6, Author
Jargot, G.7, 8, Author
Hanna, M.7, Author
Georges, P.7, Author
Ciappina, M. F.9, 10, 11, Author
Thumm, U.2, Author
Boutu, W.1, Author
Merdji, H.1, Author
Affiliations:
1Ultrafast Nanophotonics Group, LIDYL, CEA-CNRS-Université Paris-Saclay, ou_persistent22              
2Department of Physics, Kansas State University, ou_persistent22              
3Institute of Physics, University of Rostock, ou_persistent22              
4Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
5Center for Free-Electron Laser Science, ou_persistent22              
6Department of Natural Sciences, Lebanese American University, ou_persistent22              
7Université Paris-Saclay, Institut d'Optique Graduate School, CNRS, Laboratoire Charles Fabry, ou_persistent22              
8Fastlite, ou_persistent22              
9ICFO-Institut de Ciences Fotoniques, The Barcelona Institute of Science and Technology, ou_persistent22              
10Physics Program, Guangdong Technion–Israel Institute of Technology, ou_persistent22              
11Technion–Israel Institute of Technology, ou_persistent22              

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 Abstract: High-order harmonic generation (HHG) from crystals is emerging as a new ultrashort source of coherent extreme ultraviolet (XUV) light. Doping the crystal structure can offer a new way to control the source properties. Here, we present a study of HHG enhancement in the XUV spectral region from an ionic crystal, using dopant-induced vacancy defects, driven by a laser centered at a wavelength of 1.55 μm. Our numerical simulations based on solutions of the semiconductor Bloch equations and density-functional theory are supported by our experimental observations and demonstrate an increase in the XUV high harmonic yield from doped bulk magnesium oxide (MgO) compared to undoped MgO, even at a low defect concentration. The anisotropy of the harmonic emission as a function of the laser polarization shows that the pristine crystal's symmetry is preserved. Our study paves the way toward the control of HHG in solids with complex defects caused by transition-metal doping.

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Language(s): eng - English
 Dates: 2021-02-132021-04-132021-05-172021-05-17
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1063/5.0047421
arXiv: 2001.00839
 Degree: -

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Project name : -
Grant ID : 829153
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : -
Grant ID : 899794
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)

Source 1

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Title: Applied Physics Letters
  Abbreviation : Appl. Phys. Lett.
Source Genre: Journal
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Publ. Info: Melville, NY : American Institute of Physics
Pages: - Volume / Issue: 118 (20) Sequence Number: 201103 Start / End Page: - Identifier: ISSN: 0003-6951
CoNE: https://pure.mpg.de/cone/journals/resource/954922836223