Impurity position effects on the linear and nonlinear optical properties of the cubic quantum dot under an external electric field


KIRAK M. , YILMAZ S.

JOURNAL OF PHYSICS D-APPLIED PHYSICS, vol.48, no.32, 2015 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 32
  • Publication Date: 2015
  • Doi Number: 10.1088/0022-3727/48/32/325301
  • Title of Journal : JOURNAL OF PHYSICS D-APPLIED PHYSICS

Abstract

The effects of impurity (on-center and off-center) on electronic and linear and nonlinear optical properties (i.e. absorption coefficients and refractive index changes) are investigated in a cubic quantum dot in the presence of an electric field. The energy levels and wave functions are calculated using a variational method within an effective mass approximation. The results show that the existence of impurity, confinement, electric field, and position of impurity have a great effect on the optical characteristics of the system.