期刊
PHYSICAL REVIEW LETTERS
卷 101, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.073602
关键词
-
资金
- NSFC [60325414, 60578059, 60736040, 10640420195, RGC60518001]
- 973 Program [2006CB921103]
We report experimental observations on the simultaneous electromagnetically induced transparency (EIT) effects for probe and trigger fields (double EIT) as well as the enhanced cross-phase modulation (XPM) between the two fields in a four-level tripod EIT system of the D1 line of Rb-87 atoms. The XPM coefficients (larger than 2x10(-5) cm(2)/W) and the accompanying transmissions (higher than 60%) are measured at a slight detuning of the probe field from the exact EIT-resonance condition. The system and enhanced cross-Kerr nonlinearities presented here can be applied to quantum information processes.
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