The electromagnetically induced transparency in the Y-type four-level atom system at low light levels

被引：0
|
作者：
Liying Zhang
Zhendong Liu
Jun Chen
机构：
[1] Nanchang University,Institute of Modern Physics
来源：
Science in China Series G: Physics and Astronomy | 2005年 / 48卷
关键词：
quantum optics; the nonlinear effect at low light levels; EIT; spontaneous emission; quantum interference;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper a Y-type four-level atom interacting with external fields system is investigated. It is shown that increasing the control field can reduce the probe absorption, the electromagnetically induced transparency (EIT) and gain can be obtained if the parameters are taken appropriately. An interesting phenomenon is found that the system appears to be probe gain in a large region if the external fields Rabi phases are taken appropriately, too.
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收藏
页码：593 / 599
页数：6
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