Hyperfine-structure Measurement of the 7P1/2 State in 133Cs Based on the Active Optical Clock

Abstract

The hyperfine structure (hfs) of Cs 7P1/2 state is measured utilizing four-level active optical clock. Combing the Doppler effect and the active stimulated emission, the accuracy of Cs 7P1/2 hfs is expected to be optimized. The correction terms of experimental results, such as cavity-pulling effect, light shift and collision shift, are analyzed. Such a scheme can be widely extended to other alkali-metal atoms to enrich the measurements of hfs.