Figure 7
Sum of several time-correlation spectra all at the detuning angle for maximum conversion rate. The abscissa shows the time difference (ns) between detectors A and B. The coincidence peak is shifted to the negative because a delay of 350 ns (∼60 m of coaxial cable) was introduced into the signal line from detector A (see text). The peak contains 25 events, collected in 18 h. The inset is a zoom of the central ±1 µs. Abscissa and ordinate same as in Fig. 4. |