Relationship measurement between ac-Stark shift of 40Ca+ clock transition and laser polarization direction

Relationship measurement between ac-Stark shift of ⁴⁰Ca⁺ clock transition and laser polarization direction

Song Hong-Fang^{1, 2, 3, 4}, Chen Shao-Long^{1, 2, 3, 4}, Zeng Meng-Yan^{1, 2, 3, 4}, Huang Yao^{1, 2, 3}, Shao Hu^{1, 2, 3, 4}, Tang Yong-Bo⁵, Guan Hua^{1, 2, 3}, Gao Ke-Lin^{1, 2, 3, †}

(color online) Simplified sequence for our experiment. We lock our probe laser to two of the Zeeman components of clock transition with and without 395-nm laser, the frequency difference gives the frequency shift from 395-nm laser, corresponding to 4S_{1 / 2,m = −1/2} → 3D_{5/2,m = −1/2} and 4S_{1/2,m = + 1/2} → 3D_{5/2,m = + 1/2} transitions.