High-resolution spectroscopy and dynamics of multiphoton processes in atoms and molecules. Annual summary report, 1 October 1985-30 September 1986

Technical Report · Mon Jun 02 00:00:00 EDT 1986

OSTI ID:5273910

Dehmer, P M; Dehmer, J L

This report summarizes research on resonantly enhanced multiphoton absorption, dissociation, and ionization processes in atoms and molecules. Multiphoton processes were studied using from one to three independently tunable visible and/or UV laser beams in order to establish both the underlying physics and the high degree of selectivity of multiphoton processes. Measurements were made to probe both the formation of excited molecular states and the subsequent behavior of excited states either in the presence or in the absence of further intense laser radiation. Detection methods include laser-induced fluorescence, ion mass analysis, and electron energy analysis. Resonant multiphoton ionization processes are studied for the H/sub 2/, I, NO, NeXe, ArXe, KrXe, and Xe/sub 2/ using both mass spectrometry and photoelectron spectroscopy to analyze the products of the ionizations. In addition, two new instruments re being developed that will provide significantly enhanced resolution, collection efficiency, and versatility in both the ion mass and the electron kinetic energy detection channels.

• Research Organization: Argonne National Lab., IL (USA)
• OSTI ID: 5273910
• Report Number(s): AD-A-168189/9/XAB
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
MULTI-PHOTON PROCESSES
PHOTON COLLISIONS
MOLECULES
ARGON
DISTRIBUTION
ELECTRON SPECTROSCOPY
EXCITATION
FLUORESCENCE
HYDROGEN
INTERACTIONS
IODINE
IONIZATION
MASS SPECTROSCOPY
NEON
PHOTON BEAMS
RESONANCE
TUNING
VISIBLE SPECTRA
XENON
BEAMS
COLLISIONS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
FLUIDS
GASES
HALOGENS
LUMINESCENCE
NONMETALS
RARE GASES
SPECTRA
SPECTROSCOPY
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena