Linear and nonlinear optical properties in asymmetric double semi-V-shaped quantum well


Yesilgul U., Ungan F. , Kasapoglu E. , Sari H. , Sokmen I.

PHYSICA B-CONDENSED MATTER, vol.475, pp.110-116, 2015 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 475
  • Publication Date: 2015
  • Doi Number: 10.1016/j.physb.2015.07.011
  • Title of Journal : PHYSICA B-CONDENSED MATTER
  • Page Numbers: pp.110-116

Abstract

In this present work, the effects of the structure parameters such as the right-well width and the rightbarrier height on the linear, third-order nonlinear and total absorption and refractive index changes of asymmetric double semi-V-shaped quantum well are theoretically studied by using the compact-density matrix approach and iterative method. The electronic structure of this system is obtained by solving Schrodinger equation within the framework of effective mass approximation. Numerical results are presented for a typical GaAs/AlxGa1-xAs asymmetric double semi-V-shaped quantum well. The obtained results show that the right-well width and the right-barrier height have great effects on the optical characteristics of these structures. (C) 2015 Elsevier B.V. All rights reserved.