RESONANCE COHERENT ANTI-STOKES RAMAN SPECTROSCOPY OF IODINE IN SOLUTION

摘要

Coherent anti-Stokes-Raman scattering (CARS)-excitation profiles (CEPs) of the fundamental vibrational mode of I-2 dissolved in cyclohexane and dibromomethane are determined with excitation wave numbers ranging from 17 000 to 23 000 cm(-1). The experiments were performed at room temperature and with laser beams polarized parallel to each other. Calculations were performed for both the absorption spectrum and the CEPs of iodine in both solvents and compared with experimental results. Good qualitative agreement of the major features of the CEPs was found using gas phase potentials for the excited states (II1u)-I-1 and (II0+u)-I-3 the ground state (1) Sigma(g)(+). The excited state potential functions were slightly shifted to match the measured absorption spectra. (C) 1996 American Institute of Physics. [References: 24]