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Towards Attosecond Molecular Movies with X-ray Free-Electron Lasers

Ago Marinelli

The motion of electrons in molecules and solids occurs on the subfemtosecond timescale. Consequently, the study of ultrafast electronic phenomena requires the generation of laser pulses shorter than 1 fs and of sufficient intensity to interact with their target with high probability.

Since the first lasing of LCLS much progress has been made to improve the time resolution of X-ray free-electron laser (XFEL) experiments, reducing it by one order of magnitude over the initial 100 fs resolution. In my talk I will discuss the frontier of time-resolved pump/probe experiments with XFELs: the attosecond regime.

I will present our recent experimental results within the XLEAP project and discuss our ongoing effort to perform the first X-ray attosecond pump/probe experiment at LCLS-II. I will also discuss other related R&D topics such as electron beam-based ultrafast science and the application of advanced particle accelerators to the generation of Terawatt attosecond Xray pulses.

Speaker: Ago Marinelli, SLAC

Monday, 01/27/20


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SLAC Colloquium Series

2575 Sand Hill Rd, Building 51
Kavli Auditorium
Menlo Park, CA 94025