Multiple frequency conversion via atomic spin coherence of storing a light pulse |
(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 p1 and ω p2 signals are generated when the ω c1 field and the ω c2 field with a frequency of upshifted 205.6 MHz are used to scatter atomic spin coherence. |