Ramsey-CPT spectrum with the Faraday effect and its application to atomic clocks*
Tian Yuana), Tan Bo-Zhongc), Yang Jingb), Zhang Yib), Gu Si-Honga),b),c)†
       
Schematic diagram of the experimental setup. λ /4: quarter-wave plate, PD: photo detector, DC: direct current, PA: polarization analyzer, B : applied magnetic field.