An explicit FDM calculation of nonparabolicity effects in energy states of quantum wells

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Abstract

An explicit finite difference method (FDM) to solve the nonparabolic effective mass approximation of Schrodinger wave equation (SWE) for arbitrary quantum wells (QWs) is presented. The explicit nature of the presented method and its sparse matrices allow fast computation for energy states in QWs. The nonparabolicity effects are considered explicitly without iteration. This in turn results in faster and more stable calculations. The method is used to study the nonparabolicity effects in energy states and states overlapping in asymmetric AlGaAs/GaAs QWs.

Original languageEnglish
Pages (from-to)551-559
Number of pages9
JournalOptical and Quantum Electronics
Volume40
Issue number8
DOIs
Publication statusPublished - 1 Jun 2008
Externally publishedYes

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Keywords

  • Finite difference method
  • Intersubband
  • Nonparabolicity
  • Quantum well

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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