Rotational coherence imaging and control for CN molecules through time-frequency resolved coherent anti-Stokes Raman scattering
Lindgren, J., Hulkko, E., Pettersson, M., & Kiljunen, T. (2011). Rotational coherence imaging and control for CN molecules through time-frequency resolved coherent anti-Stokes Raman scattering. The Journal of Chemical Physics, 135 (22), 224514-8. doi:10.1063/1.3665934
Published inThe Journal of Chemical Physics
© 2011 American Institute of Physics
Numerical wave packet simulations are performed for studying coherent anti-Stokes Raman scattering (CARS) for CN radicals. Electronic coherence is created by femtosecond laser pulses between the X²Σ and B²Σ states. Due to the large energy separation of vibrational states, the wave packets are superpositions of rotational states only. This allows for a specially detailed inspection of the second- and third-order coherences by a two-dimensional imaging approach. We present the time-frequency domain images to illustrate the intra- and intermolecular interferences, and discuss the procedure to rationally control and experimentally detect the interferograms in solid Xe environment.