物理学报2011，Vol.60Issue(6)：319-324,6.
电磁感应透明介质中非线性法拉第偏转
Nonlinear Faraday rotation in electromagnetically induce transparency medium
摘要
Abstract
By using multiple-scale methods, we study analytically the propagation properties of the weak linear polarization probe optical field in a cold lifetime-broadened five-level V type atomic system via electromagnetically induced transparency. It is shown that with the strength of the coupling field increasing, the absorption of the probe optical field decreases rapidly and the group velocity of the probe optical field increases quickly under the consideration of linear effect. However, the velocity is several orders of magnitude slower than the light speed in vacuum. Meanwhile, we find that for the same magnetic field the nonlinear Faraday rotation direction is opposite to linear Faraday rotation, and its rotation angle grows bigger than that of linear Faraday rotation. These results mean that the Faraday rotation of the electromagnetically induced transparency medium can be controlled by the nonlinear effect.关键词
电磁感应透明/非线性法拉第偏转Key words
electromagnetically induced transparency/ nonlinear Faraday rotation引用本文复制引用
佘彦超,张蔚曦,王登龙..电磁感应透明介质中非线性法拉第偏转[J].物理学报,2011,60(6):319-324,6.基金项目
国家自然科学基金(批准号:10674113)、量子工程和微纳能源技术湖南省普通高等学校重点实验室基金(批准号:09QNT05)和铜仁学院科研计划(批准号:TS1009,TR054)资助的课题. （批准号:10674113）
