Multiple frequency conversion via atomic spin coherence of storing a light pulse*
Wang Leia), Luo Meng-Xia), Sun Jia-Xianga), Sun Yuan-Hanga), Chen Yib), Wei Xiao-Gangc), Kang Zhi-Huia), Wang Hai-Huaa)†, Gao Jin-Yuea)
       
(a) Energy level coupling of the frequency conversion and the pulse sequences of the input light fields, and (b) experimental results about the frequency conversion. The ω p2 signal is generated when the ω c2 field with a frequency of upshifted 205.6 MHz is used to scatter atomic spin coherence.