7/sup 2/D/sub 3/2/-7/sup 2/D/sub 5/2/ excitation transfer in rubidium induced in collisions with ground-state Rb and noble-gas atoms

Journal Article · Sat May 01 04:00:00 EDT 1982 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.25.2622· OSTI ID:5197914

Wolnikowski, J; Atkinson, J B; Supronowicz, J; Krause, L

Cross sections for 7/sup 2/D/sub 3/2/bold-arrow-left-right7/sup 2/D/sub 5/2/ transfer in Rb, induced in collisions with He, Ne, Ar, and with ground-state Rb atoms, have been determined using methods of atomic fluorescence. Rb vapor, pure or mixed with a noble gas, was irradiated in a glass fluorescence cell with pulses of 660-nm radiation from a N/sub 2/-laser-pumped dye laser, populating one of the /sup 2/D states by two-photon absorption. The resulting fluorescence included a direct component emitted in the decay of the optically excited state and a sensitized component arising from the collisionally populated state. Relative intensities of the components yielded the cross sections for 7/sup 2/D mixing: Q(/sup 2/D/sub 3/2/..-->../sup 2/D/sub 5/2/) = 8.8, 6.5, 10.4, and 30; Q(/sup 2/D/sub 3/2/reverse arrow/sup 2/D/sub 5/2/) = 5.8, 4.0, 6.9, and 18, in units of 10/sup -14/ cm/sup 2/ for He, Ne, Ar, and Rb, respectively. Cross sections for the effective quenching of the /sup 2/D states were also determined.

• Research Organization: Univ. of Windsor, Ontario
• OSTI ID: 5197914
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 25:5; 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
ARGON
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
FLUIDS
FLUORESCENCE
GASES
GROUND STATES
HELIUM
LASER RADIATION
LUMINESCENCE
METALS
NEON
NONMETALS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RADIATIONS
RARE GASES
RUBIDIUM