Large index of refraction without absorption via decay-induced coherence in a three-level V system |
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| Authors: | W-H?Xu J-H?Wu Email author" target="_blank">J-Y?GaoEmail author |
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| Institution: | (1) College of Physics, Jilin University, 130023 Changchun, P.R. China;(2) Key Laboratory of Coherent Light, Atomic and Molecular Spectroscopy, Educational Ministry of China, P.R. China;(3) CCAST (World Laboratory), P.O. Box 8370, 100080 Beijing, P.R. China |
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| Abstract: | We study the effects of quantum interference from spontaneous emission on the dispersion-absorption properties in a three-level V-type atomic system with two near-degenerate excited levels. We found that due to the quantum interference between two spontaneous decay channels, large index of refraction without absorption always can be obtained just by choosing proper values of the relative phase between the two applied fields.Received: 27 February 2004, Published online: 26 May 2004PACS:
42.50.Gy Effects of atomic coherence on propagation, absorption, and amplification of light; electromagnetically induced transparency and absorption - 42.50.Hz Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift |
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