Two-dimensional vibrational spectroscopy. VII. Investigation of the vibronic and vibrational couplings by using novel triply resonant two-dimensional vibrational spectroscopies

Two-dimensional vibrational spectroscopies utilizing electronically resonant optical probe fields were studied. A proper set of selection rules - new information gained using resonant vibrational spectroscopies and key differences from their analogues utilizing off-resonant optical probe pulses - were studied. Vibrationally resonant infrared field-matter interactions or Raman transitions induced by electronically off-resonant fields were used to create a single vibrational coherence state.