Far-infrared and capacitance spectroscopy of self-assembled InAs quantum dots

TL;DR

This paper reviews recent experimental techniques, including far-infrared and capacitance spectroscopy, used to study the electronic states and interactions in self-assembled InAs quantum dots, providing insights into their many-particle spectra.

Contribution

It presents a comprehensive review of experimental methods and findings related to the electronic properties and interactions in InAs quantum dots.

Findings

Electron-electron interactions significantly influence the ground state.

Spectroscopy techniques reveal detailed many-particle spectra.

Experimental approaches enable probing of quantum dot excitations.

Abstract

We review a number of recent experiments which are probing ground state and excitations of few-electron systems in self-assembled InAs quantum dots. Far-infrared spectroscopy, together with local as well as large-scale capacitive probing allows for a detailed investigation of the different contributions to the many-particle spectrum in the dots. The influence of electron--electron interactions on the ground state and the excitations is discussed.