High-order multiphoton ionization photoelectron spectroscopy of NO
Photoelectron energy angular distributions of NO following three different high-order multiphoton ionization (MPI) schemes have been measured. The 3 + 3 resonantly enhanced multiphoton ionization (REMPI) via the A/sup 2/..sigma../sup +/ (v=O) level yielded a distribution of electron energies corresponding to all accessible vibrational levels (v/sup +/=O-6) of the nascent ion. Angular distributions of electrons corresponding to v/sup +/=O and v/sup +/=3 were significantly different. The 3 + 2 REMPI via the A/sup 2/..sigma../sup +/ (v=1) level produced only one low-energy electron peak (v/sup +/=1). Nonresonant MPI at 532 nm yielded a distribution of electron energies corresponding to both four- and five-photon ionization. Prominent peaks in the five-photon photoelectron spectrum (PES) suggest contributions from near-resonant states at the three-photon level. 4 refs., 3 figs.
- Research Organization:
- Oak Ridge National Lab., TN (USA); Tennessee Univ., Knoxville (USA). Dept. of Chemistry
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5714971
- Report Number(s):
- CONF-871147-3; ON: DE88004482
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
CHALCOGENIDES
DISTRIBUTION
ELECTRON SPECTRA
ELECTRON SPECTROSCOPY
ENERGY LEVELS
EXCITED STATES
IONIZATION
MULTI-PHOTON PROCESSES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION
SPECTRA
SPECTROSCOPY
VIBRATIONAL STATES