Abstract：A high-resolution two-photon spectrum of 5$S_{1/2}\to5P_{3/2}\to5D_{5/2}$ transitions in a thermal $^{85}$Rb vapor cell is presented by using an optical frequency comb and a cw laser. The fluorescence of 6$P_{3/2}\to5S_{1/2}$ spontaneous emission is detected when the cw laser frequency is scanned from the 5$S_{1/2}$ ground state to 5$P_{3/2}$ hyperfine levels and the optical frequency comb repetition rate is fixed. The hyperfine splittings ($F_{\rm f}=2$–5) of the 5$D_{5/2}$ excited state are well resolved. The dependences of fluorescence intensities on the cw laser intensity and temperature of $^{85}$Rb vapor cell are studied, respectively. The experimental results are in good agreement with the theoretical analyses.
(General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.))
引用本文:
. [J]. 中国物理快报, 2016, 33(02): 23201-023201.
Shu-Kai Cao, Peng-Rui Fan, Yi-Chi Zhang, Li-Rong Wang, Lian-Tuan Xiao, Suo-Tang Jia. Two-Photon Transitions of $^{85}$Rb 5$D_{5/2}$ State by Using an Optical Frequency Comb and a Continuous-Wave Laser. Chin. Phys. Lett., 2016, 33(02): 23201-023201.
2016, Vol. 33 
