Free Electron Lasers (FELs) offer unprecedented opportunity for exploiting ultrafast dynamics with chemical sensitivity. Using appropriate seeding methods combined with pulse tunability, multiple polarization and multi- single or two color pulse schemes have enabled studies of dynamical responses in complex systems, by assessing how specific excitations develop and/or propagate among different...
Single particle imaging is a set of emerging techniques that utilize ultrashort and ultraintense X-ray pulses to generate diffraction from single isolated particles in the gas phase to determine their structures. One of the largest difficulties in realizing this goal is the unknown orientation of the individual sample molecules at the time of exposure. The orientation recovery process requires...
The conversion of light energy into other energy forms in molecules is the result of a concerted and ultrafast motion of electrons and nuclei, often under breakdown of the Born-Oppenheimer approximation. This talk is about ultrafast experiments aimed at resolving light induced ultrafast molecular dynamics with x-ray probe pulses using free electron lasers.
The molecules in the center of this...
Dynamics of phase transitions has been a long interest in the material science community, while recent studies on the transient states of the nanomaterials have opened a new window into the new whelm of the topological properties. It is now known that the phase transitions in low-dimensional materials are significantly modified by the effect of the shape and size [1]. This effect would have a...
