Controlling light pulse in triangular quantum well nanostructure via quantum interference

被引：6
作者：
Ebadpour, Faramarz [1 ]
Golestani, Ali [2 ]
Darkhosh, Ahad [3 ]
机构：
[1] Islamic Azad Univ, Dept Phys, Marand Branch, Marand, Iran
[2] Univ Tabriz, Res Inst Appl Phys & Astron, Tabriz, Iran
[3] Ataturk Univ, Dept Phys, Erzurum, Turkey
来源：
PHYSICA B-CONDENSED MATTER | 2015年 / 458卷
关键词：
Triangular quantum well; Refractive index; Absorption coefficient; Quantum interference; INTERSUBBAND OPTICAL ABSORPTIONS; ELECTROMAGNETICALLY INDUCED TRANSPARENCY; SLOW LIGHT; ELECTRON LOCALIZATION; KERR NONLINEARITY; PHASE-CONTROL; BISTABILITY; PROPAGATION; COHERENCE;
D O I：
10.1016/j.physb.2014.11.004
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We study numerically the optical properties of the intersubband transitions in AlGaAs/GaAs triangular quantum well nanostructure. The Schrodinger equation is being solved numerically for this structure using homemade codes. Afterward the refractive index and the absorption coefficient are calculated for general triangular quantum well using the density matrix formalism. The density matrix equations are being solved numerically for calculation of linear susceptibility. The effect of quantum interference between spontaneous emission decays on the refractive index, absorption coefficient and group velocity is studied for purposed triangular quantum well nanostructure. The result shows the linear optical properties and group index can be controlled via quantum interference between spontaneous emission decays. (C) 2014 Elsevier B.V. All rights reserved
引用
收藏
页码：58 / 62
页数：5
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