/ Inhomogeneous Broadening / IR Absorption Spectrum / IR Laser / IR Laser Radiation / Ir Spectra / IR Spectrum / isotope separation techniques / Laser Fluence / Luminescent Species / molecular energy transfer / nonlinear molecular dynamics / photon echo spectroscopy / Raman vibrational analysis / Rs Signal / Rs Spectrum / SCIENCE / Chemistry / Analytic / Spectrum analysis, spectrochemistry, mass spectrometry / Unimolecular Decomposition / vibrational energy / Vibrational Levels / Vibrationally Excited / visible luminescence