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Dipole transition strengths in Ba{sup +} from Rydberg fine-structure measurements in Ba and Ba{sup +}

Journal Article · · Physical Review. A
; ; ;  [1]
  1. Colorado State University, Fort Collins, Colorado 80523 (United States)
The fine structure of high-L n = 19 and 20 Rydberg states of Ba{sup +} has been measured precisely using the resonant excitation Stark ionization spectroscopy technique, allowing for a determination of the Ba{sup 2+} polarizability: {alpha}{sub D}(Ba{sup 2+}) = 10.75(10) a.u. This result, in combination with an improved model of the K splittings in Ba Rydberg levels, allows for a more precise determination of the Ba{sup +} dipole transition strengths connecting the 6 {sup 2}S{sub 1/2} ground state to the 6 {sup 2}P{sub 1/2} and 6 {sup 2}P{sub 3/2} excited states. The results, in atomic units, are <6 {sup 2}S{sub 1/2} ||D|| 6 {sup 2}P{sub 1/2}> = 3.3251(21) and <6 {sup 2}S{sub 1/2} ||D|| 6 {sup 2}P{sub 3/2}> = 4.7017(27).
OSTI ID:
21442910
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 82; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English