Abstract
We report on a spin-echo phenomenon that is induced between Zeeman sublevels by two laser pulses close to an optical resonance. The echo formation is due to a Zeeman light shift during the second off-resonant pulse; this light pulse creates a fictitious magnetic field that leads to the phase reversal of the spins. Our experimental results on the sodium ground state are in good qualitative agreement with theoretical predictions.
- Received 29 January 1990
DOI:https://doi.org/10.1103/PhysRevA.42.1839
©1990 American Physical Society