Spectroscopy of few-electron quantum dots

被引：0

作者：

Heitmann, D

Gudmundsson, V

Rolf, L

Schüller, C

Steinebach, C

Ulrichs, E

机构：

[1] Univ Hamburg, Inst Angew Phys, D-20355 Hamburg, Germany

[2] Univ Hamburg, Zentrum Mikrostrukturforsch, D-20355 Hamburg, Germany

[3] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland

来源：

ACTA PHYSICA POLONICA A | 1999年 / 96卷 / 05期

关键词：

D O I：

10.12693/APhysPolA.96.545

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Advances in submicron technology make it possible to realize man-made low-dimensional electronic systems with quantum confined energy states. Superimposing lateral potential onto two-dimensional electron systems for example in AlGaAs-GaAs systems allows one to prepare quantum wires and dots. We will discuss modulation-doped systems. Then, with typical confinement energies in the meV regime, far-infrared and resonant Raman spectroscopy give direct access to the quantum confined energy level of the systems; One is now approaching the limit to prepare quantum dots with well defined small numbers of electrons per dot, N = 1, 2, 3... It becomes thus possible to perform a kind of "atomic" spectroscopy in these systems.

引用

页码：545 / 557

页数：13

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