Spin-Flip Raman Echo in n -Type CdS
Pan Hu, Stanley Geschwind, Thomas M. Jedju
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{}.
Physical Review Letters•Nov 15, 1976•82 citations