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) (a) The field-free EIT spectrum and (b) the corresponding error signal for ⁸⁵Rb with N₂ buffer gas.