Bound states in continuum: Quantum dots in a quantum well

被引：11

作者：

Prodanovic, Nikola ^{[1
]}

Milanovic, Vitomir ^{[2
]}

Ikonic, Zoran ^{[1
]}

Indjin, Dragan ^{[1
]}

Harrison, Paul ^{[1
]}

机构：

[1] Univ Leeds, Sch Elect & Elect Engn, Inst Microwaves & Photon, Leeds LS2 9JT, W Yorkshire, England

[2] Univ Belgrade, Sch Elect Engn, Belgrade 11000, Serbia

来源：

PHYSICS LETTERS A | 2013年 / 377卷 / 34-36期

关键词：

Bound state in continuum; Quantum dot; Quantum well;

D O I：

10.1016/j.physleta.2013.05.051

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the existence of a bound state in the continuum (BIC) of quantum rods (QR). QRs are novel elongated InGaAs quantum dot nanostructures embedded in the shallower InGaAs quantum well. BIC appears as an excited confined dot state and energetically above the bottom of a well subband continuum. We prove that high height-to-diameter QR aspect ratio and the presence of a quantum well are indispensable conditions for accommodating the BIC. QRs are unique semiconductor nanostructures, exhibiting this mathematical curiosity predicted 83 years ago by Wigner and von Neumann. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：2177 / 2181

页数：5

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