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) Schematic diagram of experimental system. AOM: acousto-optic modulator, λ/2: 1/2 wave plate, ECDL: external-cavity diode laser. Light from 395-nm diode laser is diffracted by grating. Zero-order diffraction component is guided into the wavelength meter and the first-order one is for the experiment.