Determination of the branching of the /sup 1/P/sub 1/ Ba I level from studies of the intensity dependence of resonance fluorescence

Journal Article · Thu Jan 01 00:00:00 EST 1987 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.35.131· OSTI ID:7020233

Lewis, D A; Kumar, J; Finn, M A; Greenlees, G W

The resonance fluorescence from the /sup 138/Ba I 5535-A 6s/sup 21/S/sub 0/-6s6p /sup 1/P/sub 1/ transition has been measured as a function of incident intensity using a Doppler-free atomic beam geometry and a single-mode cw dye laser. The upper /sup 1/P/sub 1/ level has a weak branch to intermediate metastable D states. A long laser-atom interaction region was used, which ensured that essentially all atoms could be pumped into the D states during their transit through the laser beam. By analyzing the shape of the saturation curve a value for the branching ratio to the 6s5d /sup 1,3/D levels of (3.57 +- 0.38) x 10/sup -3/ has been obtained.

• Research Organization: Physics Department, Iowa State University, Ames, Iowa 50011
• OSTI ID: 7020233
• Journal Information: Phys. Rev. A; (United States), Vol. 35:1
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BARIUM
RESONANCE FLUORESCENCE
ATOMS
BRANCHING RATIO
CROSS SECTIONS
DYE LASERS
ENERGY-LEVEL TRANSITIONS
EXCITATION
GROUND STATES
MEASURING METHODS
METASTABLE STATES
ALKALINE EARTH METALS
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUORESCENCE
LASERS
LIQUID LASERS
LUMINESCENCE
METALS
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory