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  Extreme Ultraviolet Superfluorescence in Xenon and Krypton

Mercadier, L., Benediktovitch, A., Weninger, C., Blessenohl, M. A., Bernitt, S., Bekker, H., et al. (2018). Extreme Ultraviolet Superfluorescence in Xenon and Krypton.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-6D50-A Version Permalink: http://hdl.handle.net/21.11116/0000-0002-6D51-9
Genre: Paper

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1810.11097.pdf (Preprint), 5MB
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2018
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https://arxiv.org/abs/1810.11097 (Preprint)
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 Creators:
Mercadier, L.1, 2, Author              
Benediktovitch, A.3, Author
Weninger, C.1, Author              
Blessenohl, M. A.4, Author
Bernitt, S.4, 5, Author
Bekker, H.4, Author
Dobrodey, S.4, Author
Sánchez-González, A.6, Author
Erk, B.3, Author
Bomme, C.3, Author
Boll, R.3, Author
Yin, Z.3, 7, Author
Majety, V. P.1, Author              
Steinbrügge, R.4, Author
Khalal, M. A.8, Author
Penent, F.8, Author
Palaudoux, J.8, Author
Lablanquie, P.8, Author
Rudenko, A.9, Author
Rolles, D.3, 9, Author
López-Urrutia, J. R. C.4, AuthorRohringer, N.1, 3, 10, Author               more..
Affiliations:
1Quantum Optics with X-Rays, Independent Research Groups, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938291              
2European XFEL, ou_persistent22              
3Deutsches Elektronen-Synchrotron (DESY), ou_persistent22              
4Max-Planck-Institut für Kernphysik, ou_persistent22              
5Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität Jena, ou_persistent22              
6Department of Physics, Imperial College London, ou_persistent22              
7Max Planck für biophysikalische Chemie, ou_persistent22              
8Laboratoire de Chimie Physique - Matière et Rayonnement, Université Pierre et Marie Curie, ou_persistent22              
9J. R. Macdonald Laboratory, Department of Physics, Kansas State University, ou_persistent22              
10Department of Physics, Universität Hamburg, ou_persistent22              

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 Abstract: We present a comprehensive experimental and theoretical study on superfluorescence in the extreme ultraviolet wavelength regime. Focusing a high-intensity free-electron laser pulse in a cell filled with Xe or Kr gas, the medium is quasi instantaneously population-inverted by inner-shell ionization on the giant resonance followed by Auger decay. On the timescale of 100 ps a macroscopic polarization builds up in the medium, resulting in superfluorescent emission of several Xe and Kr lines in the forward direction. As the number of emitters in the system is increased by either raising the pressure or the pump-pulse energy, the emission shows an exponential growth of over 4 orders of magnitude and reaches saturation. With increasing yield, we observe line broadening, a manifestation of superfluorescence in the spectral domain. Our novel theoretical approach, based on a full quantum treatment of the atomic system and the irradiated field, shows quantitative agreement with the experiment and supports our interpretation.

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Language(s): eng - English
 Dates: 2018-10-252018-10-25
 Publication Status: Published online
 Pages: 25
 Publishing info: -
 Table of Contents: -
 Rev. Method: No review
 Identifiers: arXiv: 1810.11097
 Degree: -

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