CQS Seminar: Strong field physics reveal through time-domain spectroscopy
November 18, 2009
Speaker: Prof. George Gibson, University of Connecticut
Title: Strong field physics revealed through time-domain spectroscopy
Abstract: Pump-probe spectroscopy is generally used to study molecular dynamics. Over the past few years, we have turned this around and used molecular dynamics to study strong field interactions with molecules, using time-domain pump-probe spectroscopy. Many stromg field experiments are insensitive to the final state of the atom or molecule under study, although the final state contains important information about the strong field interaction. By studing the vibrational dynamics of the final state we can learn about interaction of the strong laser field with a molecule. In this talk, I will review a number of our results, including the meacurement of a previously inaccessible potential energy curve in iodine, the demonstration of inner-orbital ionization, the observation of a new form of coherent control which works better as a temperature increases, and the demonstration of vibrational cooling of molecules through strong-field ionization.