Eur. Phys. J. B (2017) 90: 12
https://doi.org/10.1140/epjb/e2016-70608-2

Regular Article

Effects of applied electric and magnetic fields on the nonlinear optical rectification and second-harmonic generation in a graded quantum well under intense laser field

Faculty of Technology, Department of Optical Engineering, Cumhuriyet University, 58140 Sivas, Turkey

^a e-mail: fungan@cumhuriyet.edu.tr

Received: 14 October 2016
Received in final form: 29 November 2016
Published online: 18 January 2017

Abstract

In this present study, the effects of electric and magnetic fields on the nonlinear optical rectification and second-harmonic generation in a graded quantum well under intense laser field have been investigated theoretically. The energy eigenvalues and their corresponding eigenfunctions are obtained by solving Schrödinger equation within the framework of effective mass approximation. The analytic expressions for the optical properties are calculated by the compact-density-matrix approach and iterative method. The numerical results are presented for a typical GaAs/Ga_1−xAl_xAs quantum well. The results show that the nonlinear optical rectification and second-harmonic generation coefficients are considerably affected by the electromagnetic fields and intense laser field.