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

Experimental setup. M: high reflective mirror; HWP: half wave plate; PBS: polarization beam splitter; L: lens; BS: beam splitter; BPF: band pass filter; PMT: photomultiplier; GPS; global positioning system.