Low-light-level cross-phase-modulation based on stored light pulses.

  title={Low-light-level cross-phase-modulation based on stored light pulses.},
  author={Yong-Fan Chen and Chang-Yi Wang and S. Wang and Ite Albert Yu},
  journal={Physical review letters},
  volume={96 4},
We experimentally demonstrate a low-light-level cross-phase-modulation (XPM) scheme based on the light-storage technique in laser-cooled 87Rb atoms. The proposed scheme can achieve a similar phase shift and has the same figure of merit as one using static electromagnetically induced transparency under the constant coupling field. Nevertheless, the phase shift and the energy loss of a probe pulse induced by a signal pulse are neither influenced by the coupling intensity nor by the atomic optical… CONTINUE READING

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