Third-harmonic generation of a laser-driven quantum dot with impurity


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

PHYSICA B-CONDENSED MATTER, vol.539, pp.101-105, 2018 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 539
  • Publication Date: 2018
  • Doi Number: 10.1016/j.physb.2018.04.005
  • Title of Journal : PHYSICA B-CONDENSED MATTER
  • Page Numbers: pp.101-105
  • Keywords: Quantum dot, Intense laser field, Nonlinear optics, Impurity, NONLINEAR-OPTICAL RECTIFICATION, 3RD HARMONIC-GENERATION, INTENSE LASER, ELECTRONIC STATES, FIELD, ABSORPTION, INTERPLAY, SPECTRA, ENERGY, RINGS

Abstract

The third-harmonic generation (THG) coefficient for a laser-driven quantum dot with an on-center Gaussian impurity under static magnetic field is theoretically investigated. Laser field effect is treated within the high-frequency Floquet approach and the analytical expression of the THG coefficient is deduced from the compact density-matrix approach. The numerical results demonstrate that the application of intense laser field causes substantial changes on the behavior of THG. In addition the position and magnitude of the resonant peak of THG coefficient is significantly affected by the magnetic field, quantum dot size and the characteristic parameters of the impurity potential.