Time zero determination for FEL pump-probe studies based on ultrafast melting of bismuth

S. W. Epp, Masaki Hada, Y. Zhong, Y. Kumagai, K. Motomura, S. Mizote, T. Ono, S. Owada, D. Axford, S. Bakhtiarzadeh, H. Fukuzawa, Yasuhiko Hayashi, T. Katayama, A. Marx, H. M. Müller-Werkmeister, R. L. Owen, D. A. Sherrell, K. Tono, K. Ueda, F. Westermeier & 1 others R. J.D. Miller

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A common challenge for pump-probe studies of structural dynamics at X-ray freeelectron lasers (XFELs) is the determination of time zero (T0)-the time an optical pulse (e.g., an optical laser) arrives coincidently with the probe pulse (e.g., a XFEL pulse) at the sample position. In some cases, T0 might be extracted from the structural dynamics of the sample's observed response itself, but generally, an independent robust method is required or would be superior to the inferred determination of T0. In this paper, we present how the structural dynamics in ultrafast melting of bismuth can be exploited for a quickly performed, reliable and accurate determination of T0 with a precision below 20 fs and an overall experimental accuracy of 50 fs to 150 fs (estimated). Our approach is potentially useful and applicable for fixed-target XFEL experiments, such as serial femtosecond crystallography, utilizing an optical pump pulse in the ultraviolet to near infrared spectral range and a pixelated 2D photon detector for recording crystallographic diffraction patterns in transmission geometry. In comparison to many other suitable approaches, our method is fairly independent of the pumping wavelength (UV-IR) as well as of the X-ray energy and offers a favorable signal contrast. The technique is exploitable not only for the determination of temporal characteristics of the experiment at the interaction point but also for investigating important conditions affecting experimental control such as spatial overlap and beam spot sizes.

Original languageEnglish
Article number054308
JournalStructural Dynamics
Volume4
Issue number5
DOIs
Publication statusPublished - Sep 1 2017

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X ray lasers
Bismuth
Free electron lasers
Structural dynamics
bismuth
dynamic structural analysis
Laser pulses
Melting
melting
Pumps
pumps
probes
pulses
lasers
x rays
Crystallography
Diffraction patterns
Photons
Experiments
crystallography

ASJC Scopus subject areas

  • Radiation
  • Instrumentation
  • Condensed Matter Physics
  • Spectroscopy

Cite this

Epp, S. W., Hada, M., Zhong, Y., Kumagai, Y., Motomura, K., Mizote, S., ... Miller, R. J. D. (2017). Time zero determination for FEL pump-probe studies based on ultrafast melting of bismuth. Structural Dynamics, 4(5), [054308]. https://doi.org/10.1063/1.4999701

Time zero determination for FEL pump-probe studies based on ultrafast melting of bismuth. / Epp, S. W.; Hada, Masaki; Zhong, Y.; Kumagai, Y.; Motomura, K.; Mizote, S.; Ono, T.; Owada, S.; Axford, D.; Bakhtiarzadeh, S.; Fukuzawa, H.; Hayashi, Yasuhiko; Katayama, T.; Marx, A.; Müller-Werkmeister, H. M.; Owen, R. L.; Sherrell, D. A.; Tono, K.; Ueda, K.; Westermeier, F.; Miller, R. J.D.

In: Structural Dynamics, Vol. 4, No. 5, 054308, 01.09.2017.

Research output: Contribution to journalArticle

Epp, SW, Hada, M, Zhong, Y, Kumagai, Y, Motomura, K, Mizote, S, Ono, T, Owada, S, Axford, D, Bakhtiarzadeh, S, Fukuzawa, H, Hayashi, Y, Katayama, T, Marx, A, Müller-Werkmeister, HM, Owen, RL, Sherrell, DA, Tono, K, Ueda, K, Westermeier, F & Miller, RJD 2017, 'Time zero determination for FEL pump-probe studies based on ultrafast melting of bismuth', Structural Dynamics, vol. 4, no. 5, 054308. https://doi.org/10.1063/1.4999701
Epp, S. W. ; Hada, Masaki ; Zhong, Y. ; Kumagai, Y. ; Motomura, K. ; Mizote, S. ; Ono, T. ; Owada, S. ; Axford, D. ; Bakhtiarzadeh, S. ; Fukuzawa, H. ; Hayashi, Yasuhiko ; Katayama, T. ; Marx, A. ; Müller-Werkmeister, H. M. ; Owen, R. L. ; Sherrell, D. A. ; Tono, K. ; Ueda, K. ; Westermeier, F. ; Miller, R. J.D. / Time zero determination for FEL pump-probe studies based on ultrafast melting of bismuth. In: Structural Dynamics. 2017 ; Vol. 4, No. 5.
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AU - Mizote, S.

AU - Ono, T.

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AU - Hayashi, Yasuhiko

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AU - Marx, A.

AU - Müller-Werkmeister, H. M.

AU - Owen, R. L.

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