Artículos de revistas
Pump-probe experiments at the TEMPO beamline using the low-α operation mode of Synchrotron SOLEIL
Silly, Mathieu G.; Ferte, Tom; Tordeux, Marie Agnes; Pierucci, Debora; Beaulieu, Nathan; et al.; Pump-probe experiments at the TEMPO beamline using the low-α operation mode of Synchrotron SOLEIL; International Union of Crystallography; Journal of Synchrotron Radiation; 24; 4; 6-2017; 886-897
Silly, Mathieu G.
Tordeux, Marie Agnes
Lopez Flores, Victor
Tortarolo, Marina del Carmen
Ricaud, Jean Paul
The SOLEIL synchrotron radiation source is regularly operated in special filling modes dedicated to pump–probe experiments. Among others, the low-α mode operation is characterized by shorter pulse duration and represents the natural bridge between 50 ps synchrotron pulses and femtosecond experiments. Here, the capabilities in low-α mode of the experimental set-ups developed at the TEMPO beamline to perform pump–probe experiments with soft X-rays based on photoelectron or photon detection are presented. A 282 kHz repetition-rate femtosecond laser is synchronized with the synchrotron radiation time structure to induce fast electronic and/or magnetic excitations. Detection is performed using a two-dimensional space resolution plus time resolution detector based on microchannel plates equipped with a delay line. Results of time-resolved photoelectron spectroscopy, circular dichroism and magnetic scattering experiments are reported, and their respective advantages and limitations in the framework of high-time-resolution pump–probe experiments compared and discussed.