Abstract

We demonstrate a unique atomic interferometer employing collective radiation from the atoms to measure the atomic phase. Atomic coherence is detected by interference of a continuous free-induction decay field and a continuous photon-echo field that originate in spatially separated regions of an atomic beam. Using this system, we measure the 180° phase shift of a J = 0 atomic state that undergoes a 2π-rotation of the Bloch vector or a two-level optical transition.

© 1995 Optical Society of America

Demonstration of a nonmagnetic blazed-grating atomic beam splitter

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