Summary: NaK D 1
electric dipole moment measurement by Stark level crossing
and e­f mixing spectroscopy
M. Tamanis, M. Auzinsh, I. Klincare, O. Nikolayeva, A. V. Stolyarov,a)
and R. Ferber
Department of Physics, University of Latvia, Riga LV-1586, Latvia
Received 15 April 1996; accepted 7 November 1996
The paper presents the first permanent electric dipole moment dp measurements for NaK D1
state
rovibronic levels. Two different methods were applied to obtain dp values. Stark effect induced
level crossing registered as the changes of fluorescence linear polarization P(E) with external
electric field E yielded from one fit both the electric dipole moment value and the -doubling
splitting between e,f substates of an individual rotational state. Another method consisted of
obtaining the ratio ef
J
/dp from E-dependence of the forbidden line appearing in fluorescence as a
result of e­f Stark mixing, along with direct ef
J
measurement by RF ­ optical double resonance.
The respective dipole moment values obtained are 5.9 ­ 6.4 D for the state v 7, J 23, as well

Source: Auzinsh, Marcis - Department of Physics, University of Latvia

Collections: Physics