Chinese Optics Letters, 2018, 16 (6): 060203, Published Online: Jul. 2, 2018
Determination of hyperfine structure constants of 5 D 5 / 2 and 7 S 1 / 2 states of rubidium in cascade atomic system
Abstract
We present a method to precisely determine the hyperfine structure constants of the rubidium 5 D 5 / 2 and 7 S 1 / 2 states in a cascade atomic system. The probe laser is coupled to the 5 S 1 / 2 → 5 P 3 / 2 hyperfine transition, while the coupling laser is scanned over the 5 P 3 / 2 → 5 D 5 / 2 ( 7 S 1 / 2 ) transition. The high-resolution double-resonance optical pumping spectra are obtained with two counter-propagating laser beams acting on rubidium vapor. The hyperfine splitting structures are accurately measured by an optical frequency ruler based on the acousto-optic modulator, thus, the magnetic dipole hyperfine coupling constant A and quadrupole coupling constant B are determined. It is of great significance for the atomic hyperfine structure and fundamental physics research.
Shaohua Li, Yihong Li, Jinpeng Yuan, Lirong Wang, Liantuan Xiao, Suotang Jia. Determination of hyperfine structure constants of