Influence of third-harmonic fields on multiphoton ionization of noble gases in unfocused laser beams

Journal Article · Fri Aug 01 04:00:00 EDT 1986 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.34.1165· OSTI ID:5648159

Garrett, W R; Ferrell, W R; Payne, M G; Miller, J C

Unfocused linearly polarized laser beams, in single-pass and counterpropagating configurations, are used in conjunction with absolute ionization measurements in calibrated proportional counters to examine the nature of multiphoton ionization of xenon near three-photon resonances. Mixtures of xenon with other noble gases are also used to incorporate phase matching in order to elucidate additional characteristics of multiphoton ionization in the presence of third-harmonic fields. Point-by-point comparisons are made between theoretically predicted and experimentally observed features of the study. We also show how detailed information on multiphoton ionization involving phase-matched third-harmonic photons can be used to obtain optical constants in the vacuum-ultraviolet region.

• Research Organization: Chemical Physics Section, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5648159
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 34:2; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
BUFFERS
COHERENT PRODUCTION
ELECTROMAGNETIC RADIATION
ELEMENTS
EXTREME ULTRAVIOLET RADIATION
FLUIDS
FOCUSING
FREQUENCY MIXING
GASES
HARMONIC GENERATION
IONIZATION
LASER RADIATION
MULTI-PHOTON PROCESSES
NONMETALS
PARTICLE PRODUCTION
PHOTOIONIZATION
PRESSURE DEPENDENCE
RADIATIONS
RARE GASES
ULTRAVIOLET RADIATION
XENON