High quality electromagnetically induced transparency spectroscopy of <sup>87</sup>Rb in a buffer gas cell with a magnetic field

High quality electromagnetically induced transparency spectroscopy of ⁸⁷Rb in a buffer gas cell with a magnetic field

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

(color online) Experimental spectra of Rb atom with buffer gas and the removing of the broadened background: (a) B = 0, (b) B = 44.3 Gs. In both cases, we can get a good signal-to-noise ratio, thus providing a technique to study the spectrum of high resolution.