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Optica Publishing Group
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1996),
  • paper QFD5

The properties of coherent population trapping and possible applications in high-resolution interferometry

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Abstract

In recent years a lot of theoretical work has been done analyzing coherent effects in three-level atoms coupled with two laser fields.1,2 Possible applications using the steep dispersion with vanishing absorption have been discussed.3 We have measured the properties of a coherent population trapping scheme in a cesium atomic beam using a new heterodyne interferometry technique. This technique is based on detection of the beat signal between both fields first before and second after the interaction region. As the phase between both beat signals depends on the difference between both optical paths, the dispersion induced by the medium could now be demodulated by heterodyning the beat signals.

© 1996 Optical Society of America

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