Coherent control of the photoionization and photodissociation of HI and the photoionization of H2S were obtained in the region of the 5d(π, δ) resonance of HI. Interference between one- and three-photon excitation paths caused modulation of the HI+ , I+ , and H2S+ signals. Phase lags between the different modulated signals, measured as a function of excitation energy, revealed the roles played by molecular and resonance phases. A theory of the phase lag arising from a set of overlapping rotational resonances was developed and used to interpret the observations.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry