Abstract

We report on the first observation of a Raman echo, using spin-flip Raman scattering at 4905 \AA{} of bound donors in CdS to create a coherent spin state. The free-induction decays associated with each pulse in the sequence of two $\frac{\ensuremath{\pi}}{2}$ pulses as well as the echo are probed by spin-flip Raman scattering at 4880 \AA{}.

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