Laser frequency offset-locking using electromagnetically induced transparency spectroscopy of <sup>85</sup>Rb in magnetic field

Laser frequency offset-locking using electromagnetically induced transparency spectroscopy of ⁸⁵Rb in magnetic field

Wang Han-Mu^{1, 2}, Cheng Hong^{1, 2}, Zhang Shan-Shan^{1, 2}, Xin Pei-Pei^{1, 2}, Xu Zi-Shan^{1, 2}, Liu Hong-Ping^{1, 2, †}

(color online) Magnetic sublevel diagram of ⁸⁵Rb atoms in the presence of magnetic field. All possible polarization combinations for the Λ-EIT scheme are shown in panel (a). The observed and calculated splittings of EIT resonances in magnetic field B = 14.5 G along the probe laser polarization direction are shown in panel (b) as an example.