Physical, Theoretical & Computational

Ultrafast Intense Laser Chemistry (#35)

Recent advances in ultrashort and intense pulsed laser technologies have enabled the generation of extremely intense pulses in the femtosecond time domain and extremely short laser pulses in the attosecond (10^-18 s) time domain. With these advances we are now measuring ultrafast chemical phenomena such as motions of protons and electrons within a molecule occurring during 100 as, controlling chemical processes with multipulse sequences, transferring biological molecules from the condensed phase into the gas phase for subsequent analysis and producing laser filaments for remote detection. It is also possible to investigate an effect of carrier envelope phase on chemical bond breaking and rearrangement processes proceeding within a few-cycle intense laser pulse. For interpreting such extremely fast processes induced by attosecond pulses as well by intense and few-cycle laser pulses, theoretical approaches beyond Born-Oppenheimer approximations have been developed. Furthermore, high-order harmonics generated by ultrashort laser pulses are now combined with X-ray free electron laser to generate intense soft-X ray light pulses, which can be used for optical microscopy in the water-window wavelength region. The symposium will focus on these latest developments in femtosecond and attosecond laser science and explore the newest applications to laser chemistry and frontiers in a newly developing branch of physical chemistry.
Last update: Dec 28, 2015