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Proceedings Paper

Time-resolved studies of the diamond-to-graphite transition induced by a short-wavelength free-electron laser radiation (Conference Presentation)
Author(s): Sven Toleikis; Franz Tavella; Hauke Höppner; Victor Tkachenko; Nikita Medvedev; Flavio Capotondi; Torsten Golz; Yun Kai; Michele Manfredda; Emanuele Pedersoli; Mark J. Prandolini; Nikola Stojanovic; Takanori Tanikawa; Ulrich Teubner; Beata Ziaja

Paper Abstract

XUV pulses at 26.2 nm wavelength were applied to induce graphitization of diamond through a non-thermal solid-to-solid phase transition. This process was observed within poly-crystalline diamond with a time-resolved experiment using ultrashort XUV pulses and cross correlated by ultrashort optical laser pulses. This scheme enabled for the first time the measurement of a phase transition on a timescale of ~150 fs. Excellent agreement between experiment and theoretical predictions was found, using a dedicated code that followed the non-equilibrium evolution of the irradiated diamond including all transient electronic and structural changes. These observations confirm that ultrashort XUV pulses can induce a non-thermal ultrafast solid-to-solid phase transition on a hundred femtosecond timescale.

Paper Details

Date Published: 14 May 2019
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Proc. SPIE 11035, Optics Damage and Materials Processing by EUV/X-ray Radiation VII, 1103508 (14 May 2019); doi: 10.1117/12.2523139
Show Author Affiliations
Sven Toleikis, Deutsches Elektronen-Synchrotron (Germany)
Franz Tavella, SLAC National Accelerator Lab. (United States)
Hauke Höppner, Helmholtz-Zentrum Dresden-Rossendorf (Germany)
Victor Tkachenko, Hochschule Emden-Leer (Germany)
Nikita Medvedev, Institute of Physics of the CAS, v.v.i. (Czech Republic)
Flavio Capotondi, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
Torsten Golz, Deutsches Elektronen-Synchrotron (Germany)
Yun Kai, Hochschule Emden-Leer (Germany)
Michele Manfredda, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
Emanuele Pedersoli, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
Mark J. Prandolini, Helmholtz-Institut Jena (Germany)
Nikola Stojanovic, Deutsches Elektronen-Synchrotron (Germany)
Takanori Tanikawa, European XFEL GmbH (Germany)
Ulrich Teubner, Hochschule Emden-Leer (Germany)
Beata Ziaja, Deutsches Elektronen-Synchrotron (Germany)


Published in SPIE Proceedings Vol. 11035:
Optics Damage and Materials Processing by EUV/X-ray Radiation VII
Libor Juha; Saša Bajt; Stéphane Guizard, Editor(s)

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