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Stark shift of the $A^2Π_{1/2}$ state in $^{174}$YbF

P. C. Condylis·J. J. Hudson·M. R. Tarbutt·B. E. Sauer·E. A. Hinds
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Abstract

We have measured the Stark shift of the $A^2Π_{1/2} - X^2Σ^+$ transition in YbF. We use a molecular beam triple resonance method, with two laser transitions acting as pump and probe, assisted by an rf transition that tags a single hyperfine transition of the X state. After subtracting the known ground state Stark shift, we obtain a value of $70.3(1.5) $Hz/(V/cm)$^2$ for the static electric polarizability of the state $A^2Π_{1/2}(J=1/2,f)$. From this we calculate a value $μ_e=2.46(3)$D for the electric dipole moment of the $A^2Π_{1/2}(v=0)$ state.

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P. C. Condylis, J. J. Hudson, M. R. Tarbutt, B. E. Sauer, E. A. Hinds. 2005-09-12. Stark shift of the $A^2Π_{1/2}$ state in $^{174}$YbF. https://doi.org/10.1063/1.2141948

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