Tunneling induced transparency and slow light in quantum dot molecules

被引：122

作者：

Borges, H. S. ^{[1
]}

Sanz, L. ^{[1
]}

Villas-Boas, J. M. ^{[1
]}

Diniz Neto, O. O. ^{[1
]}

Alcalde, A. M. ^{[1
]}

机构：

[1] Univ Fed Uberlandia, Inst Fis, BR-38400902 Uberlandia, MG, Brazil

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 11期

关键词：

OPTICAL CONTROL; DYNAMICS;

D O I：

10.1103/PhysRevB.85.115425

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electromagnetic induced transparency is an optical phenomenon that allows transmission of a laser beam through a dense medium by using a control laser beam. Here, we propose the use of a quantum molecule where the control laser beam is replaced by the electron tunneling between quantum dots, which can be controlled by an external electric field, opening the possibility to induce transparency and slow light with electric gates. Our results show that a transparency window appears if the tunneling strength T-e and the decay rate of direct exciton Gamma(1) obey the condition T-e/Gamma(1) <= 0.5.

引用

页数：7

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