Phys. Rev. A 70, 011801(R) (2004) [4 pages]Superluminal and slow light propagation in cold atoms
The group velocity of a light pulse propagating through a four-level system exhibiting electromagnetically induced transparency can be manipulated by a pump laser. The pump laser induces the large optical nonlinearities with steep normal or anomalous dispersion. We present experimental measurements that demonstrate both slow and superluminal light propagation in cold Rb atoms. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.70.011801
DOI:
10.1103/PhysRevA.70.011801
PACS:
42.50.Gy, 42.65.−k, 32.80.−t
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