Third harmonic generation of spherical multilayered quantum dot: effects of quantum confinement, impurity, electric and magnetic fields


KIRAK M. , YILMAZ S.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, vol.128, no.5, 2022 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 128 Issue: 5
  • Publication Date: 2022
  • Doi Number: 10.1007/s00339-022-05601-1
  • Title of Journal : APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
  • Keywords: Third harmonic generation, Multilayer quantum dot, Electric field, Magnetic field, NONLINEAR-OPTICAL PROPERTIES, SPIN-ORBIT INTERACTION, HYDROGENIC IMPURITY, 3RD-HARMONIC GENERATION, BINDING-ENERGY, HYDROSTATIC-PRESSURE, EXTERNAL FIELDS, DONOR IMPURITY, STATES, WELL

Abstract

In this study, simultaneous effects of hydrogenic impurity, core radius and layer thickness, external electric and magnetic fields on the third harmonic generation (THG) of core/shell/well/shell spherical quantum dot are noticed. The wavefunctions and energy values are obtained using 2D finite difference method within the effective mass approximation. Our results show that THG coefficient is more effected by the external fields and sizes of core, barrier and well regions. Also, we investigated the effects of on-center hydrogenic donor impurity on THG of structure, and show that the presence of impurity causes a significant reduction of the magnitude of THG in certain potential parameter values.