|Title||Strong relative intensity squeezing by four-wave mixing in rubidium vapor|
|Publication Type||Journal Article|
|Year of Publication||2007|
|Authors||C. F. McCormick, V. Boyer, E. Arimondo, and P. D. Lett|
|Keywords||2007, four-wave mixing, Nonlinear optics, Single Fellow, Squeezed states|
We have measured −3.5 dB (−8.1 dB corrected for losses) relative intensity squeezing between probe and conjugate beams generated by stimulated, nondegenerate four-wave mixing in hot rubidium vapor. Unlike early observations of squeezing in atomic vapors based on saturation of a two-level system, our scheme uses a resonant nonlinearity based on ground-state coherences in a three-level system. Since this scheme produces narrowband, squeezed light near an atomic resonance, it is of interest for experiments involving cold atoms or atomic ensembles.