Two-photon spectrum of <sup><bold>87</bold></sup>Rb using optical frequency comb<xref ref-type="fn" rid="cpb150044fn1">*</xref>

Two-photon spectrum of ⁸⁷Rb using optical frequency comb*

Wang Li-Rong†, Zhang Yi-Chi, Xiang Shao-Shan, Cao Shu-Kai, Xiao Lian-Tuan, Jia Suo-Tang

(a) Fluorescence intensity of ⁸⁷ Rb spectrum for the 5S_1/2( F _g = 2) → 5D_5/2 ( F _e = 4) as a function of laser average power (corresponding to 5S_1/2 → 5P_3/2 transition). (b) Fluorescence intensity of ⁸⁷Rb spectrum for the 5S_1/2( F _g = 2) → 5D_5/2 ( F _e = 4) as a function of temperature of Rb vapor cell. The dots represent experimental results and the solid line refers to fit.