期刊论文

The Change of Group Velocity：from Subluminal to Superluminal Light Propagation in the V System

中文

南华大学学报(自然科学版)

1673-0062

2009

23

4

49-52

10.19431/j.cnki.1673-0062.2009.04.012

本校为第一机构

在近简并的封闭三能级V系统中,一束弱激光探测场的群速度可以通过控制一单色驱动场的强度实现慢光速到超光速的转换.采用修饰态的方法在物理上解释了产生这种现象的可能原因.

This paper reveals that the group velocity of a weak laser probe field can be manipulated by controlling the intensity of the driving field applied to a near-degenerate closed three-level V system.Such control can even cause the probe propagation to change from subluminal to superluminal.And the results mentioned above can b...