Superluminal propagation via coherent manipulation of the Raman gain process

被引：85

作者：

Agarwal, GS ^{[1
]}

Dasgupta, S ^{[1
]}

机构：

[1] Phys Res Lab, Ahmadabad 380009, Gujarat, India

来源：

PHYSICAL REVIEW A | 2004年 / 70卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.70.023802

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a method of manipulating the Raman process by using a coherent control field which leads to splitting of the Raman gain peak into a doublet and anomalous dispersion in the region between the gain peaks. We show how the region of almost no Raman gain and strong anomalous dispersion is ideally suited for producing superluminal propagation. In particular, we show that the group index for a Na-23 condensate could be in the range -10(3) to -10(4).

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页码：023802 / 1

页数：5

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