Enhanced Cross-Phase Modulation via Phase Control in a Quantum dot Nanostructure

被引：0
|
作者：
郝向英 [1 ]
郑安寿 [2 ]
王英 [1 ]
李小刚 [1 ]
机构：
[1] School of Science,Wuhan Institute of Technology
[2] School of Mathematics and Physics,China University of Geosciences
来源：
CommunicationsinTheoreticalPhysics | 2012年 / 57卷 / 05期
基金：
中国国家自然科学基金;
关键词：
cross-phase modulation (XPM); phase control; quantum dot (QD);
D O I：
暂无
中图分类号：
O437 [非线性光学（强光与物质的作用）];
学科分类号：
摘要：
A four-level quantum dot (QD) nanostructure interacting with four fields (two weak near-infrared (NIR) pulses and two control fields) forms the well-known double-cascade configuration.We investigate the cross-phase modulation (XPM) between the two NIR pulses.The results show,in such a closed-loop scheme,that the XPM can be greatly enhanced,while the linear absorption and two-photon absorption (gain) can be efficiently depressed by tuning the relative phase among the applied fields.This protocol may have potential applications in NIR all-optical switch design and quantum information processing with the solid-state materials.
引用
收藏
页码：866 / 872
页数：7
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