XUV-driven plasma switch for THz: new spatio-temporal overlap tool for XUV-THz pump-probe experiments at FELs.

Autor: Zapolnova E; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Pan R; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Golz T; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Sindik M; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Nikolic M; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Temme M; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Rabasovic M; Institute of Physics Belgrade, Pregrevica 118, 11080 Belgrade, Serbia., Grujic D; Institute of Physics Belgrade, Pregrevica 118, 11080 Belgrade, Serbia., Chen Z; SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA., Toleikis S; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Stojanovic N; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany.
Jazyk: angličtina
Zdroj: Journal of synchrotron radiation [J Synchrotron Radiat] 2020 Jan 01; Vol. 27 (Pt 1), pp. 11-16. Date of Electronic Publication: 2020 Jan 01.
DOI: 10.1107/S1600577519014164
Abstrakt: A simple and robust tool for spatio-temporal overlap of THz and XUV pulses in in-vacuum pump-probe experiments is presented. The technique exploits ultrafast changes of the optical properties in semiconductors (i.e. silicon) driven by ultrashort XUV pulses that are probed by THz pulses. This work demonstrates that this tool can be used for a large range of XUV fluences that are significantly lower than when probing by visible and near-infrared pulses. This tool is mainly targeted at emerging X-ray free-electron laser facilities, but can be utilized also at table-top high-harmonics sources.
(open access.)
Databáze: MEDLINE
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