Controlling the probe-absorption and -dispersion via quantum interference from incoherent pumping field in a four-level lambda-type system |
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| Authors: | M Sahrai R Nasehi M Memarzadeh H Hamedi J B Poursamad |
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| Institution: | 1.Research Institute for Applied Physics and Astronomy,University of Tabriz,Tabriz,Iran;2.Department of Optic and Laser,University of Bonab,Bonab,Iran |
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| Abstract: | Absorptive and dispersive properties of a four-level Λ-type atomic
system with two fold lower levels are investigated. The effect of quantum interference
induced by incoherent pump and spontaneous emission upon the absorption, dispersion, and
group index is them discussed. In addition, the rate of an incoherent pump field and the
intensity of coupling field on light propagation is also presented. |
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