Nonlinear optical rectification and the second and third harmonic generation in Poschl-Teller quantum well under the intense laser field


Sakiroglu S., Ungan F. , Yesilgul U., Mora-Ramos M. E. , Duque C. A. , Kasapoglu E. , ...More

PHYSICS LETTERS A, vol.376, no.23, pp.1875-1880, 2012 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 376 Issue: 23
  • Publication Date: 2012
  • Doi Number: 10.1016/j.physleta.2012.04.028
  • Title of Journal : PHYSICS LETTERS A
  • Page Numbers: pp.1875-1880
  • Keywords: Nonlinear optics, Poschl-Teller quantum well, Intense laser field, APPLIED ELECTRIC-FIELD, REFRACTIVE-INDEX CHANGES, APPLIED MAGNETIC-FIELD, 3RD-HARMONIC GENERATION, PSEUDODOT SYSTEM, HYDROSTATIC-PRESSURE, DONOR IMPURITIES, BINDING-ENERGY, HYDROGEN-ATOM, ABSORPTION

Abstract

In this work, the effect of a non-resonant intense laser field on the optical rectification and second and third harmonic generation in a Poschl-Teller quantum well is theoretically investigated. In this regard, the coefficients of nonlinear optical rectification and second and third harmonic generation are obtained by using the compact-density matrix approach and an iterative method. Different values of the asymmetry parameters of the Poschl-Teller potential as well as intense laser field strength have been considered. Numerical results presented for a typical GaAs quantum wells show that higher-order optical effects are considerably sensitive to intense laser field and can be adjusted by a correct choice of asymmetry parameters of the potential. (C) 2012 Elsevier B.V. All rights reserved.