Abstract
The analysis of spontaneous resonance rovibrational Raman scattering is a sensitive quantum-specific probe of photodissociation processes that occur on a subrotational-period time scale. The photodissociation of methyl radical and ammonia demonstrate how rotational- and vibrational-specific subpicosecond lifetimes are determined by this frequency-domain analysis and reveal the shape of the excited-potential energy surfaces responsible for the observed photodissociation dynamics. Mode-specific subpicosecond methyl iodide photodissociation rates are determined by the polarization analysis of resonance light-scattering spectra. When pressurized by a “solvent” gas, the character of the resonance emission changes and interference effects between Raman and fluorescence emission pathways are observed. This effect is discussed for the resonance emission of methyl iodide (B-state). The consequences of the interferences are discussed for estimates of electronic dephasing times in solution.
© 1992 Optical Society of America
PDF ArticleMore Like This
L. D. ZIEGLER
QWI3 International Quantum Electronics Conference (IQEC) 1990
P. K. Walkout and P. F. Barbara
TuE.27 International Conference on Ultrafast Phenomena (UP) 1996
A. Makida, T. Fujiwara, Yu Harabuchi, T. Taketsugu, and T. Sekikawa
08.Tue.P2.14 International Conference on Ultrafast Phenomena (UP) 2014