Journal
PHYSICAL REVIEW A
Volume 87, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.87.055401
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Funding
- NSF of China [11104085, 11125417]
- Major Research Plan of the National Natural Science Foundation of China [91121023]
- SKPBR of China [2011CB922104]
- PCSIRT
- SRFGS of SCNU
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In a three-level Lambda atomic system coupled by a symmetrical bichromatic laser field, a weak probe laser field shows multiple absorption peaks in the case of cold atoms. As for hot atomic vapors, we experimentally observe double symmetrical electromagnetically induced transparency windows instead of multiple absorption peaks. This abnormal spectrum is due to the Doppler averaging. The electromagnetically induced transparency windows observed here are useful for obtaining slow photons at different frequencies.
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