Abstract

The measurement of Raman excitation profiles (REP) of a molecule in condensed phase is an effective method for studying the potential-energy surfaces of molecular electronic states. This technique, however, is difficult to apply on adsorbates because of lack of surface sensitivity and specificity. In this paper we show that doubleresonance infrared-visible sum-frequency generation (DR IVSFG) can be used as a surface version of REP for probing electron-phonon coupling in an adsorbate.

© 1993 Optical Society of America