Dynamic Pathways in Multidimensional Landscapes

Session

X-Ray interactive with matter 1

17 Sept 2013, 09:30

Magnus-Haus of the German Physical Society

28. A New Era of X-ray Science: Beyond one-photon-at-a-time

Mr Joachim Stohr (SLAC/Stanford)

My talk will give a historic perspective of the revolutionary science that was enabled by the advent of high power sources of coherent electromagnetic radiation and the implications for future scientific opportunities with x-ray free electron lasers (X-FELs). The historical journey starts with the development of radar microwave sources in the 1940s that fueled the development of nuclear...

10. Femtosecond RIXS of Fe(CO)5 in ethanol – resolving ultrafast excited state and ligand substitution dynamics in solution

Mr Kristjan Kunnus (Helmholtz-Zentrum Berlin für Materialien und Energie)

2

Using ultrashort X-ray pulses from the Linac Coherent Light Source we carried out a pump-probe resonant inelastic x-ray scattering (RIXS) experiment on Fe(CO)5 photodissociation in ethanol. This allowed us to follow the evolution of the valence electronic structure of the iron carbonyl species in an element- and chemical-selective way with a 300 fs (FWHM) time resolution. Supported by novel ab...

9. Non-linear effects in x-ray emission of liquid water with ultra-high fluence at LCLS

1

The oxygen K-edge x-ray emission (XE) spectrum of liquid water at ultra-high x-ray fluences was studied at the SXR Instrument of the x-ray free electron laser (FEL) LCLS. XE spectra were measured from a liquid micro-jet in vacuum for a wide range of x-ray fluences by varying x-ray spot size, flux and pulse duration. The threshold fluence for reproducing reference data measured at BESSY II...