2ème atelier international
J. Phys. IV France 05 (1995) C4-289-C4-296
Single-Shot Femtosecond Spectroscopy of Reactive Organic Molecular CrystalsW. Wang, D.D. Chung, J.T. Fourkas, L. Dhar and K.A. Nelson
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, U.S.A.
Recent progress in single-shot femtosecond spectroscopy is described. This methodology is necessary for ultrafast time-resolved observation of solid-state chemical reactions, since the build-up of reaction products which cannot be flowed away or otherwise conveniently removed causes spectroscopic signals to change (and samples to undergo deterioration) as a particular region of the sample is irradiated many times. The first single-shot femtosecond observations of molecular vibrations and of short-time response in a photoreactive crystal are discussed.
© EDP Sciences 1995