Precision Study of 6p 2Pj->8s 2 S1/2 Relative Transition Matrix Elements in Atomic Cs

Published

October 12, 2021

Author(s)

A Sieradzan, M D. Havey, M S. Safronova

Abstract

A combined experimental and theoretical study of transition matrix elements of the 6s ²S_1/2-> 6p ²P_j-> 8s ²S_1/2 transition in atomic Cs is reported. Measurements of the polarization-dependent two-photon excitation spectrum associated with the transition were made in an approximately 200 cm^-1 range on the low frequency side of the 6s ²S_1/2 -> 6p ²P_3/2 resonance. The measurements depend parametrically on the relative transition matrix elements, but also are sensitive to far-off-resonance 6s ²P_j -> 8s²S_1/2 transitions. In the past, this dependence has yielded a generalized sum rule, the value of which is dependent on sums of relative two-photon transition matrix elements. In the present case, best available determinations from other experiments are combined with theoretical matrix elements to extract the ratio of transition matrix elements for the 6p ²P_j -> 8s ²S_1/2 (j=1/2,3/2) transition. The resulting experimental value of 1.423(2) is in excellent agreement with the theoretical value, calculated using relativistic all-order method, of 1,425(2).

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Pub Type

Journals

Keywords

all-order calculations, cesium, transition matrix elements, two-photon transitions

Citation

Sieradzan, A. , Havey, M. and Safronova, M. (2021), Precision Study of 6p ²P_j->8s ² S_1/2 Relative Transition Matrix Elements in Atomic Cs, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed May 5, 2024)