PHOTON-ECHO QUANTUM BEATS ON THE 7P3-2-6S1-2 TRANSITION IN CESIUM

Photon-echo quantum beats arising from magnetic splitting of the cesium 7P32-6S12 transition were observed in a dilute atomic vapor by means of a novel polarization-rotation technique. The quantum-beat spectrum contains frequencies generated by the hyperfine structure of the 7P32 level as well as those due to the Zeeman splitting of both ground and excited levels. Experimental data for both F=3 and F=4 hyperfine components of the 6S12 ground state and for several echo delay times were fitted to calculated spectra, including corrections arising from Faraday rotation of the echo pulses. © 1979 The American Physical Society.