Production of Ba/sup +/ in a two-photon radiative collision in crossed Na-Ba beams

Journal Article · Sat Mar 31 23:00:00 EST 1984 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.29.2230· OSTI ID:7050992

Keller, J; Weiner, J

We report the observation of a two-step radiative collisional ionization between Na((3p /sup 2/P/sub 3/2/) and Ba(6s/sup 2/ /sup 1/S/sub 0/) in which an optical p photon is absorbed simultaneously with the collision, Na((3p /sup 2/P/sub 3/2/)+Ba(6s/sup 2/ /sup 1/S/sub 0/)+h..omega -->..Ba((6p/sup 2/ /sup 1/S/sub 0/)+Na(3s /sup 2/S/sub 1/2/) and with subsequent photoionization of the excited barium, Ba((6p/sup 2/ /sup 1/S/sub 0/)+h..omega -->..Ba/sup +/+e. We observe peak ion intensity close to the difference frequency between Ba((6p/sup 2/ /sup 1/S/sub 0/) and Na((3p /sup 2/P/sub 3/2/) as well as a quadratic increase of ion intensity with laser power. These results confirm, complement, and extend the interpretation of an earlier observation.

• Research Organization: Department of Chemistry, University of Maryland, College Park, Maryland 20742
• OSTI ID: 7050992
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 29:4; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ALKALINE EARTH METALS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
BARIUM
COLLISIONS
CROSS SECTIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LEVELS
EXCITED STATES
IONIZATION
LASER RADIATION
METALS
MULTI-PHOTON PROCESSES
PHOTOIONIZATION
RADIATIONS
SODIUM
TIME-OF-FLIGHT METHOD