Rashba spin-orbit coupling effects on the optical properties of double quantum wire under magnetic field


Karaaslan Y., Gisi B., Sakiroglu S., Kasapoglu E. , Sari H. , Sokmen I.

SUPERLATTICES AND MICROSTRUCTURES, vol.93, pp.32-39, 2016 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 93
  • Publication Date: 2016
  • Doi Number: 10.1016/j.spmi.2016.02.043
  • Title of Journal : SUPERLATTICES AND MICROSTRUCTURES
  • Page Numbers: pp.32-39

Abstract

We investigate the effects of Rashba spin-orbit interaction on the optical absorption coefficients and refractive index changes associated with transitions between the first two lower-lying electronic levels in double quantum wire. The wire system represented by a symmetric, double quartic-well confinement potential is subjected to a perpendicular magnetic field. The analytical expressions of the linear and third-order nonlinear optical absorption coefficients and refractive index changes are obtained by using the compact density matrix formalism and iterative scheme. Optical properties are investigated as a function of structural parameter, magnetic field, Rashba spin-orbit interaction and photon energies. Numerical results reveal that competing effects between spin-orbit interaction and magnetic field modify strongly the optical properties and can be altered by these parameters. (C) 2016 Elsevier Ltd. All rights reserved.