Molecular-beam optical Stark and Zeeman study of the A {sup 2}{Pi}--X {sup 2}{Sigma}{sup +} (0,0) band system of BaF

Journal Article · Fri Jul 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.012508· OSTI ID:22051296

Steimle, Timothy C; Frey, Sarah; Le, Anh; DeMille, David; Rahmlow, David A; Linton, Colan ^[1]

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1. Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604 (United States)

The A {sup 2}{Pi}-X {sup 2}{Sigma}{sup +} (0,0) band system of barium monofluoride (BaF) has been recorded using high-resolution laser-induced fluorescence spectroscopy both field-free and in the presence of static magnetic and electric fields. The field-free spectra for the {sup 135}BaF, {sup 137}BaF, and {sup 138}BaF isotopologues were modeled to generate an improved set of spectroscopic constants for the A {sup 2}{Pi}({upsilon} = 0) and X {sup 2}{Sigma}{sup +}({upsilon} = 0) states. The observed optical Stark shifts for the {sup 138}BaF isotopologue were analyzed to produce the permanent electric dipole moments of 1.50(2) and 1.31(2) D for the A {sup 2}{Pi}{sub 1/2}({upsilon} = 0) and A {sup 2}{Pi}{sub 3/2} ({upsilon} = 0) states, respectively. The observed optical Zeeman shifts for the {sup 138}BaF isotopologue were analyzed to produce a set of magnetic g factors for the A {sup 2}{Pi}({upsilon} = 0) and X {sup 2}{Sigma}{sup +}({upsilon} = 0) states.

• OSTI ID: 22051296
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 84; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BARIUM
ELECTRIC DIPOLE MOMENTS
FLUORESCENCE SPECTROSCOPY
LANDE FACTOR
MOLECULAR BEAMS
SPECTRA
STARK EFFECT
ZEEMAN EFFECT