Voltage-controlled storage and retrieval of an infrared-light pulse in a quantum-dot molecule

被引：25

作者：

Li, Jiahua ^{[1
,2
]}

Yu, Rong ^{[3
]}

Si, Liugang ^{[1
,2
]}

Yang, Xiaoxue ^{[1
,2
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China

[3] Wuhan Inst Technol, Sch Sci, Wuhan 430073, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2009年 / 282卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Storage and retrieval; Quantum dot molecule (QDM); Voltage-controlled tunneling; ELECTROMAGNETICALLY INDUCED TRANSPARENCY; INTERFERENCE; STATES;

D O I：

10.1016/j.optcom.2009.02.066

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Dynamic storage and retrieval of a weak infrared (IR)-light pulse are investigated theoretically with feasible parameters in an asymmetric double quantum dot system, a quantum dot molecule (QDM). It is shown that, with a voltage-controlled tunneling, we are able to store and retrieve the IR signal pulse in this three-subband QDM medium by slowly switching off and on the tunneling. The scheme proposed may open up the electrical controllability of quantum optical information storage and retrieval, which is expected to be useful in quantum information science in an asymmetric double quantum dot controlled by voltage. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：2437 / 2441

页数：5

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