Subluminal and superluminal propagation of light in an N-type medium

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	Subluminal and superluminal propagation of light in an N-type medium
	Han, DG ; Guo, H ; Bai, YF ; Sun, H
刊名	physics letters a
	2005
关键词	group velocity susceptibility PHASE-COHERENT AMPLIFICATION ANOMALOUS-DISPERSION ATOMIC VAPOR MATTER WAVES GAIN TRANSPARENCY PHOTONS STORAGE SYSTEM PULSE
DOI	10.1016/j.physleta.2004.11.022
英文摘要	For a three-level electromagnetically induced transparency (EIT) atomic system, we show that, adding a third driving field coupled to a fourth state, the properties of the weak probe light propagation are greatly changed. Due to the increase of the driving field, when the driving and the coupling detunings are zero, the light propagation can be changed from subluminal to superluminal. Also, the analytical solution exhibiting superluminal group velocity is given at the zero probe detuning. (C) 2004 Elsevier B.V. All rights reserved.; Physics, Multidisciplinary; SCI(E); 48; ARTICLE; 2-3; 243-248; 334
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/254519]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Han, DG,Guo, H,Bai, YF,et al. Subluminal and superluminal propagation of light in an N-type medium[J]. physics letters a,2005.
APA	Han, DG,Guo, H,Bai, YF,&Sun, H.(2005).Subluminal and superluminal propagation of light in an N-type medium.physics letters a.
MLA	Han, DG,et al."Subluminal and superluminal propagation of light in an N-type medium".physics letters a (2005).