https://doi.org/10.1140/epjp/s13360-020-00465-x
Regular Article
Nonlinear optical properties of n-type asymmetric double 
-doped quantum wells: role of high-frequency laser radiation, doping concentration and well width
1
Department of Naval Architecture and Marine Engineering, Faculty of Engineering, Piri Reis University, 34940, Istanbul, Turkey
2
Centro de Investigación en Ciencias, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, C.P. 62209, Cuernavaca, Morelos, Mexico
3
Facultad de Ciencias Básicas, Universidad de Medellín, Medellín, Colombia
4
Department of Optical Engineering, Faculty of Technology, Sivas Cumhuriyet University, Sivas, Turkey
* e-mail: asdurmuslar@pirireis.edu.tr
Received:
5
March
2020
Accepted:
14
May
2020
Published online:
31
May
2020
A numerical investigation on the nonlinear optical rectification, second and third harmonic generation coefficients in asymmetric double n-type -doped GaAs quantum well is performed in order to identify the influence of non-resonant intense laser radiation, doping concentration and the change in well widths. The energy eigenvalues and the corresponding eigenfunctions are determined by using effective-mass and parabolic band approximations. The working analytical expressions for the optical coefficients are derived from the iterative solving of compact-density matrix description of dielectric susceptibility. The obtained results reveal that the position and amplitude of the nonlinear optical rectification, second and third harmonic generation coefficients can be altered by modifying the external field as well as the compositional and geometrical setups.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2020
