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, cilt.475, ss.110-116, 2015 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 475
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.physb.2015.07.011
  • Dergi Adı: PHYSICA B-CONDENSED MATTER
  • Sayfa Sayıları: ss.110-116

Özet

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.