Molecular Frame Image Restoration and Partial Wave Analysis of Photoionization Dynamics of NO by Time-Energy Mapping of Photoelectron Angular Distribution

The benchmark system of molecular photoionization dynamics, the (1 + 1') two-photon ionization of NO via the A state, is investigated using the time-energy mapping of the photoelectron angular distribution in a laboratory frame. The molecular frame photoelectron angular distribution and partial wave composition are determined from time-energy maps and compared with those obtained by Schwinger variational calculation (SVC) and state-to-state photoelectron spectroscopy. Good agreement is found with SVC. By comparison of the phase shifts of the scattering waves and the quantum defects of the Rydberg states, the l hybridization of p waves is identified.