Speaker: Thomas Fennel, University of Rostock, Germany
Program Description
A major promise of FEL science is the realization of unprecedented imaging capabilities for analysing the structure and ultrafast dynamics of matter. While the shortest possible x-ray wavelength appears desirable to achieve maximal spatial resolution in x-ray diffraction experiments, longer wavelengths turns out to enable the identification of three-dimensional structures in large-angle single-shot imaging experiments. In the talk I will discuss the underlying physics based on the recent demonstration of this concept on free nanoparticles [1]. In the second part I will discuss the perspectives and challenges of dynamic x-ray imaging based on complete self-consistent electromagnetic microscopic particle-in-cell (MicPIC) simulations of IR pump x-ray probe imaging for the example of clusters [3]. It will be shown that there is hope for reaching attosecond time resolution in the visualization of complex dynamical processes in matter by x-ray diffraction.
[1] I. Barke et al., Nat. Commun. 6, 6187 (2015)
[2] C. Peltz et al., Phys. Rev. Lett. 113, 133401 (2014)
[3] Sander et al., J. Phys. B 48,204004 (2015)
