Valence band spectroscopy in V-grooved quantum wires

TL;DR

This paper combines theoretical and experimental approaches to analyze the optical absorption anisotropy in V-shaped quantum wires, enabling detailed valence band spectroscopy independent of electron confinement effects.

Contribution

It introduces a method to extract heavy- and light-hole state information from anisotropy spectra regardless of electron confinement.

Findings

Successful correlation between theory and experiment.

Identification of valence band states through anisotropy spectra.

Method enables accurate valence band spectroscopy.

Abstract

We present a combined theoretical and experimental study of the anisotropy in the optical absorption of V-shaped quantum wires. By means of realistic band structure calculations for these structures, we show that detailed information on the heavy- and light-hole states can be singled out from the anisotropy spectra {\em independently of the electron confinement}, thus allowing accurate valence band spectroscopy.