文章基本信息

标题：Tunneling Control of Transmission Coefficient and Group Index in a Quantum Dot Nanostructure
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作者：Hamid Reza Hamedi ; A. Khaledi-Nasab ; H. Ghaforyan 等
期刊名称：Advances in Condensed Matter Physics
印刷版ISSN：1687-8108
电子版ISSN：1687-8124
出版年度：2014
卷号：2014
DOI：10.1155/2014/589415
出版社：Hindawi Publishing Corporation
摘要：We theoretically study the transmission and group index properties of the probe field in a four-level quantum dot molecule. It is found that the tunnel coupling plays a very important role in realizing the transmission coefficient of the probe field. Moreover, the impact of an incoherent pump field on imaginary part of susceptibility is investigated. We show that probe transmission exhibits oppositional behavior against weak and strong incoherent pump rates. This approach allows substantial flexibility in the manipulation of group velocity of light.