Single FIR-photon detection using a quantum dot

被引：10

作者：

Antonov, V ^{[1
]}

Astafiev, O ^{[1
]}

Kutsuwa, T ^{[1
]}

Hirai, H ^{[1
]}

Komiyama, S ^{[1
]}

机构：

[1] Univ Tokyo, Dept Basic Sci, Meguro Ku, Tokyo 153, Japan

来源：

PHYSICA E | 2000年 / 6卷 / 1-4期

关键词：

quantum dots; cyclotron resonance; Coulomb blockade; edge states;

D O I：

10.1016/S1386-9477(99)00167-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We study single-electron-transistor (SET) operation of the quantum dot (QD) in a strong magnetic field under weak illumination of far-infrared (FIR) radiation, which causes cyclotron resonance (CR) excitation inside the QD. We find that the SET conductance resonance is exceedingly sensitive to the FIR: It switches on (off) upon the excitation of just one electron to a higher Landau level: inside the QD, whereby enabling us to detect individual events of FIR-photon (hv congruent to 6 meV) absorption. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：367 / 370

页数：4

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