A new concept for temporal gating of synchrotron X‐ray pulses

Schmidt, D.
Bauer, R.
Chung, S.
Novikov, D.
Sander, M.
Pudell, J.-E.
Herzog, M.
Pfuetzenreuter, D.
Schwarzkopf, J.
Chernikov, R.
Gaal, P.

DOI: https://doi.org/10.23689/fidgeo-4395
Schmidt, D.; Bauer, R.; Chung, S.; Novikov, D.; Sander, M.; Pudell, J.-E.; Herzog, M.; Pfuetzenreuter, D.; Schwarzkopf, J.; Chernikov, R.; Gaal, P., 2021: A new concept for temporal gating of synchrotron X‐ray pulses. In: Journal of Synchrotron Radiation, 28, 2, 375-382, DOI: https://doi.org/10.23689/fidgeo-4395. 
 
Schmidt, D.; 1Institut für Nanostruktur- und Festkörperphysik, Universität Hamburg, Luruper Chaussee 149, 22761Hamburg, Germany
Bauer, R.; 1Institut für Nanostruktur- und Festkörperphysik, Universität Hamburg, Luruper Chaussee 149, 22761Hamburg, Germany
Chung, S.; 2Deutsches Elektronen-Synchrotron (DESY), 22607Hamburg, Germany
Novikov, D.; 2Deutsches Elektronen-Synchrotron (DESY), 22607Hamburg, Germany
Sander, M.; 3Paul-Scherrer Institute, Forschungsstrasse 111, 5232Villigen, Switzerland
Pudell, J.-E.; 4Institut für Physik und Astronomie, Universität Potsdam, 14476 Potsdam, Germany
Herzog, M.; 4Institut für Physik und Astronomie, Universität Potsdam, 14476 Potsdam, Germany
Pfuetzenreuter, D.; 5Leibniz-Institut für Kristallzüchtung, Max-Born-Strasse 2, 12489Berlin, Germany
Schwarzkopf, J.; 5Leibniz-Institut für Kristallzüchtung, Max-Born-Strasse 2, 12489Berlin, Germany
Chernikov, R.; 6Canadian Light Source Inc., 44 Innovation Boulevard, Saskatoon, CanadaSK S7N 2V3

Abstract

A new concept for temporal gating of synchrotron X‐ray pulses based on laser‐induced thermal transient gratings is presented. First experimental tests of the concept yield a diffraction efficiency of 0.18%; however, the calculations indicate a theoretical efficiency and contrast of >30% and 10−5, respectively. The full efficiency of the pulse picker has not been reached yet due to a long‐range thermal deformation of the sample after absorption of the excitation laser. This method can be implemented in a broad spectral range (100 eV to 20 keV) and is only minimally invasive to an existing setup.


A new concept for temporal gating of synchrotron X‐ray pulses based on laser‐induced thermal transient gratings is presented.