Repetitive non-thermal melting as a timing monitor for femtosecond pump/probe X-ray experiments

Time-resolved optical pump/X-ray probe experiments are often used to study structural dynamics. To ensure high temporal resolution, it is necessary to monitor the timing between the X-ray pulses and the laser pulses. The transition from a crystalline solid material to a disordered state in a non-the...

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Bibliographic Details
Main Authors: Å. U. J. Bengtsson, J. C. Ekström, Xiaocui Wang, A. Jurgilaitis, Van-Thai Pham, D. Kroon, J. Larsson
Format: Article
Language:English
Published: AIP Publishing LLC and ACA 2020-09-01
Series:Structural Dynamics
Online Access:http://dx.doi.org/10.1063/4.0000020
Description
Summary:Time-resolved optical pump/X-ray probe experiments are often used to study structural dynamics. To ensure high temporal resolution, it is necessary to monitor the timing between the X-ray pulses and the laser pulses. The transition from a crystalline solid material to a disordered state in a non-thermal melting process can be used as a reliable timing monitor. We have performed a study of the non-thermal melting of InSb in single-shot mode, where we varied the sample temperature in order to determine the conditions required for repetitive melting. We show how experimental conditions affect the feasibility of such a timing tool.
ISSN:2329-7778