Dynamic Stark effect and forbidden-transition spectral line shapes

Journal Article · Sat Apr 15 04:00:00 EDT 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.73.0· OSTI ID:20787134

Stalnaker, J E; Guzman, J S; Rochester, S M ^[1]; Budker, D; Freedman, S J ^[1]; Yashchuk, V V ^[2]

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1. Department of Physics, University of California, Berkeley, California 94720-7300 (United States)
2. Advanced Light Source Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

We report on an experimental and theoretical study of the dynamic (ac) Stark effect on a forbidden transition. A general framework for parametrizing and describing off-resonant ac-Stark shifts is presented. A model is developed to calculate spectral line shapes resulting from resonant excitation of atoms in an intense standing light wave in the presence of off-resonant ac-Stark shifts. The model is used in the analysis and interpretation of a measurement of the ac-Stark shifts of the static-electric-field-induced 6s{sup 2} {sup 1}S{sub 0}{yields}5d6s{sup 3}D{sub 1} transition at 408 nm in atomic Yb. The results are in agreement with estimates of the ac-Stark shift of the transition under the assumption that the shift is dominated by that of the 6s{sup 2} {sup 1}S{sub 0} ground state. A detailed description of the experiment and analysis is presented. A biproduct of this work is an independent determination (from the saturation behavior of the 408-nm transition) of the Stark transition polarizability, which is found to be in agreement with our earlier measurement. This work is part of the ongoing effort aimed at a precision measurement of atomic parity-violation effects in Yb.

• OSTI ID: 20787134
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 73; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
ELECTRIC FIELDS
EXCITATION
FORBIDDEN TRANSITIONS
GROUND STATES
PARITY
PHOTON-ATOM COLLISIONS
POLARIZABILITY
SHAPE
STARK EFFECT
VISIBLE RADIATION
YTTERBIUM