Affordable Access

Spectroscopy of few-electron quantum dots

Authors
Publisher
Acad. Inst.
Publication Date
Keywords
  • 530 Physik
Disciplines
  • Physics

Abstract

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 levels of the systems. One is now approaching the limit to prepare quantum dots with well defined small numbers of electrons per dot, N=3D 1, 2, 3... It becomes thus possible to perform a kind of ``atomic'' spectroscopy in these systems.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Cotunneling spectroscopy in few-electron quantum d...

on Physical Review Letters Dec 17, 2004

Determination of energy scales in few-electron dou...

on Review of Scientific Instrumen... December 2011
More articles like this..