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Time-resolved ionization measurements with intense ultrashort XUV and X-ray free-electron laser pulses

Published online by Cambridge University Press:  29 April 2019

Victor Tkachenko ,
Martin Büscher ,
Hauke Höppner ,
Nikita Medvedev ,
Vladimir Lipp ,
Giulio Maria Rossi ,
Flavio Capotondi ,
Paola Finetti ,
Emanuele Pedersoli  and
Ivaylo Nikolov
...Show all authors
Victor Tkachenko*
Affiliation:
Institute for Laser and Optics (ILO), Hochschule Emden/Leer – University of Applied Sciences, Constantiaplatz 4, 26723 Emden, Germany Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
Martin Büscher
Affiliation:
Institute for Laser and Optics (ILO), Hochschule Emden/Leer – University of Applied Sciences, Constantiaplatz 4, 26723 Emden, Germany
Hauke Höppner
Affiliation:
Institute for Laser and Optics (ILO), Hochschule Emden/Leer – University of Applied Sciences, Constantiaplatz 4, 26723 Emden, Germany Institute for Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, 01328 Dresden, Germany
Nikita Medvedev
Affiliation:
Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 18221 Prague, Czech Republic Institute of Plasma Physics, Czech Academy of Sciences, Za Slovankou 3, 18200 Prague, Czech Republic
Vladimir Lipp
Affiliation:
Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
Giulio Maria Rossi
Affiliation:
Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
Flavio Capotondi
Affiliation:
Elettra Sincrotrone Trieste, S.S. 14 km 163, 5 in Area Science Park, 34149 Basovizza, Italy
Paola Finetti
Affiliation:
Elettra Sincrotrone Trieste, S.S. 14 km 163, 5 in Area Science Park, 34149 Basovizza, Italy
Emanuele Pedersoli
Affiliation:
Elettra Sincrotrone Trieste, S.S. 14 km 163, 5 in Area Science Park, 34149 Basovizza, Italy
Ivaylo Nikolov
Affiliation:
Elettra Sincrotrone Trieste, S.S. 14 km 163, 5 in Area Science Park, 34149 Basovizza, Italy
Mitcho Danailov
Affiliation:
Elettra Sincrotrone Trieste, S.S. 14 km 163, 5 in Area Science Park, 34149 Basovizza, Italy
Luca Giannessi
Affiliation:
Elettra Sincrotrone Trieste, S.S. 14 km 163, 5 in Area Science Park, 34149 Basovizza, Italy
Mark J. Prandolini
Affiliation:
Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
Sven Toleikis
Affiliation:
Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
Katalin Mecseki
Affiliation:
SLAC National Accelerator Laboratory, Sand Hill Rd 2575, CA 94025 Menlo Park, USA
Matthew Windeler
Affiliation:
SLAC National Accelerator Laboratory, Sand Hill Rd 2575, CA 94025 Menlo Park, USA
Beata Ziaja
Affiliation:
Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakòw, Poland
Franz Tavella
Affiliation:
SLAC National Accelerator Laboratory, Sand Hill Rd 2575, CA 94025 Menlo Park, USA
Ulrich Teubner*
Affiliation:
Institute for Laser and Optics (ILO), Hochschule Emden/Leer – University of Applied Sciences, Constantiaplatz 4, 26723 Emden, Germany Institute of Physics, Carl von Ossietzky University, Carl-von-Ossietzky-Str. 9-11, 26111 Oldenburg, Germany
*
Author for correspondence: Victor Tkachenko, Institute for Laser and Optics (ILO), Hochschule Emden/Leer – University of Applied Sciences, Constantiaplatz 4, 26723 Emden, Germany and Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany. E-mail: [email protected]; Ulrich Teubner, Institute for Laser and Optics (ILO), Hochschule Emden/Leer – University of Applied Sciences, Constantiaplatz 4, 26723 Emden, Germany and Institute of Physics, Carl von Ossietzky University, Carl-von-Ossietzky-Str. 9-11, 26111 Oldenburg, Germany. E-mail: [email protected]
Author for correspondence: Victor Tkachenko, Institute for Laser and Optics (ILO), Hochschule Emden/Leer – University of Applied Sciences, Constantiaplatz 4, 26723 Emden, Germany and Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany. E-mail: [email protected]; Ulrich Teubner, Institute for Laser and Optics (ILO), Hochschule Emden/Leer – University of Applied Sciences, Constantiaplatz 4, 26723 Emden, Germany and Institute of Physics, Carl von Ossietzky University, Carl-von-Ossietzky-Str. 9-11, 26111 Oldenburg, Germany. E-mail: [email protected]
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Abstract

Modern free-electron lasers (FEL) operating in XUV (extreme ultraviolet) or X-ray range allow an access to novel research areas. An example is the ultrafast ionization of a solid by an intense femtosecond FEL pulse in XUV which consequently leads to a change of the complex index of refraction on an ultrashort timescale. The photoionization and subsequent impact ionization resulting in electronic and atomic dynamics are modeled with our hybrid code XTANT(X-ray thermal and non-thermal transitions) and a Monte Carlo code XCASCADE(X-ray-induced electron cascades). The simulations predict the temporal kinetics of FEL-induced electron cascades and thus yield temporally and spatially resolved information on the induced changes of the optical properties. In a series of experiments at FERMI and LCLS, single shot measurements with spatio-temporal encoding of the ionization process have been performed by a correlation of the FEL pump pulse with an optical femtosecond probe pulse. An excellent agreement between the experiment and the simulation has been found. We also show that such kind of experiments forms the basis for pulse duration and arrival time jitter monitoring as currently under development for XUV-FELs.

Keywords

Free-electron laserXUVX-ray
Type
Review Article
Information
Laser and Particle Beams , Volume 37 , Issue 2 , June 2019 , pp. 235 - 241
Copyright
Copyright © Cambridge University Press 2019 

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