Photo: H. Choe

Understanding the structural dynamics of solid materials under external perturbation is important since sensitivity to an external perturbation is regarded as either physical and/or chemical properties of crystals. The development of novel experimental methods that cover multiple time scales (from pico- to micro-seconds) allows for selective identification of the specific changes on each time scale and their influence on the materials. 

We focus on the development of the state-of-the-art time-resolved x-ray diffraction methods allowing for a better understanding of the dynamical processes in crystalline materials and providing new insights for the design of advanced materials.

• Femtosecond x-ray diffraction

• Stroboscopic time-resolved x-ray diffraction

The custom-built novel stroboscopic data-acquisition systems are a standalone/portable module thus they can be easily implemented for several time-resolved scattering experiments at different synchrotron facilities and/or even at the home-laboratory diffractometer system.

• BUNCH-STROBO

Photo: H. Choe

Knowledge of the materials structure and composition at the nanoscale is essential for understanding their physical, chemical, or electronic properties.

We dedicate to Bragg coherent diffraction imaging method which opens access to characterize the crystalline materials with 3D high-resolution imaging methods.

• Biomineral mesoscale structure

• Domain dynamics in ferroelectrics

• Development of data acquisition schemes