TITLE:
Theoretical Investigation of Electronic and Optical Properties of Si/SiGe Quantum Cascade Structures
AUTHORS:
Khadidja Zellat, Belabbes Soudini, Salah Mohamed Ait Cheikh
KEYWORDS:
SiGe Alloy; Electronic and Optical Properties; Quantum Cascade Lasers (QCLs)
JOURNAL NAME:
Advances in Materials Physics and Chemistry,
Vol.3 No.1,
March
27,
2013
ABSTRACT: This paper reviews the basic properties of the SiGe alloy, presents some
new results on its electronic and optical properties, and discusses the
approach that has been followed to model quantum wells containing SiGe layers
for applications in quantum cascade lasers. The shape of the confining
potential, the subband energies and their eigen envelope wave functions are
calculated by solving a one-dimensional Schr?dinger equation. The calculations
of optical parameters are used to optimize the Si/SiGe quantum cascade
structures. Our results are found to be in good agreement with other calculations.