SPECTROSCOPY OF QUANTUM DOTS AND ANTIDOTS

被引：25
|
作者：
HEITMANN, D
KERN, K
DEMEL, T
GRAMBOW, P
PLOOG, K
ZHANG, YH
机构：
[1] Max-Planck-Institut für Festkörperforschung, W-7000 Stuttgart 80
来源：
SURFACE SCIENCE | 1992年 / 267卷 / 1-3期
关键词：
D O I：
10.1016/0039-6028(92)91130-4
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The remarkable progress of submicron technology has made it possible to realize man-made low-dimensional electronic systems. Starting from two-dimensional electronic systems (2DES) in semiconductor heterostructures the electrons are further confined by lateral potentials acting on a submicron scale. This induces quantum confined energy states such that, for wires, a set of one-dimensional subbands with free dispersion in only one direction is formed or, for dots, artificial "atoms" with a totally discrete energy spectrum are obtained. A reversed structure with respect to quantum dots are "antidots" where geometrical holes are "punched" into an originally 2DES. These low-dimensional systems exhibit unique properties. In this review we would like to discuss some recent results on far-infrared excitations in quantum dots and antidots.
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页码：245 / 252
页数：8
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