Spin–orbit autoionization and intensities in the double-resonant delayed pulsed-field threshold photoionization of HCl
State‐selected delayed pulsed‐field threshold photoionizationspectra of HCl and DCl are recorded in double‐resonant transitions through the F ^1Δ, E ^1Σ^+, and g ^3Σ^− states of the 4pπ Rydberg configuration. Comparison of observed rotational line strengths with calculated spectra, as well as with available time‐of‐flight photoelectron spectra, provides useful insight on the influence of spin–orbit and rotational autoionization on delayed pulsed‐field threshold photoionization of HCl. Spin–orbit and rotational autoionization are seen to dramatically reduce the ion rotational intensity associated with the upper spin–orbit level of the ion.
© 1994 American Institute of Physics. (Received 16 November 1993; accepted 28 February 1994) Work at Purdue was supported by the National Science Foundation and CNRS (NSF Grant Nos. CHE-9307131 and INT-9216810). Work at California Institute of Technology was supported by grants from the Air Force Office of Scientific Research and the Office of Health and Environmental Research of the U.S. Department of Energy. V.M. and K.W. also acknowledge use of resources of the Jet Propulsion Laboratory/California Institute of Technology CRAY Y-MP2E/232 Supercomputer.
Published - 1.466717.pdf