Monday, April 9, 2012, 10:00 am — NSLS-II Seminar Room, Bldg. 817
Enhancement of outstanding light source characteristics of SPring-8 such as high brilliance, extremely narrow divergence and short pulse characteristics have brought an innovation to the time resolved experiment for Materials Science. Since 2005, the X-ray pinpoint structural measurement which is an elaborate coupling of the 40ps time resolved experiment with the 100nm beam diffraction technique, has been developed and applied to the rapid phase change mechanism of DVD materials1-4), photo-induced phase transitions5) etc. SPring-8 has also made further progress in development of the ultrafast pulse selector, which allows far higher performance in time resolved measurement by full-coverage of the bunch mode of SPring-8. This improvement of time resolved experiment technique has led to success in time resolved diffraction measurement of the tetragonal lattice strain in single crystal BaTiO3 under electric field6). In the talk, challenges and the prospects for SPring-8 nano application indispensable for time resolved experiment will be also presented.
Hosted by: Qun Shen
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