Intense laser field effects on the third-harmonic generation in a quantum pseudodot system

Sakiroglu S., Kilic D. G. , Yesilgul U., Ungan F. , Kasapoglu E. , Sari H. , ...More

PHYSICA B-CONDENSED MATTER, vol.521, pp.215-220, 2017 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 521
  • Publication Date: 2017
  • Doi Number: 10.1016/j.physb.2017.06.071
  • Page Numbers: pp.215-220


In this research, we present the effects of high-frequency intense laser field on the third-harmonic generation associated with intersubband transitions in a two-dimensional quantum pseudodot system subjected to an uniform external magnetic field. Non-resonant monochromatic laser radiation with circular polarization is considered within the framework of high-frequency Floquet approach. On the basis of the compact-density matrix approach and an iterative method, the third-harmonic generation coefficient is calculated. The results presented for a GaAs quantum dot show that: (i) the position and magnitude of the resonant peak of third-harmonic generation depend strongly on magnetic field, the chemical potential and zero-point of pseudoharmonic potential; (ii) the strength of intense laser field modifies the confinement potential which results in considerable changes in the nonlinear optical response of the system.