The effects of the intense laser field on the optical properties of the asymmetric parabolic quantum well

Kasapoglu E., UNGAN F., YEŞİLGÜL Ü.

OPTICAL AND QUANTUM ELECTRONICS, cilt.49, sa.4, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Sayı: 4
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1007/s11082-017-1009-4
  • Dergi Adı: OPTICAL AND QUANTUM ELECTRONICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Asymmetric parabolic quantum well, Intense laser field, Optical transitions, INTERSUBBAND TRANSITIONS, REFRACTIVE-INDEX, MAGNETIC-FIELDS, SEMICONDUCTOR MICROCAVITIES, HYDROSTATIC-PRESSURE, TERAHERTZ EMISSION, DONOR IMPURITY, BINDING-ENERGY, ABSORPTION, DISTORTION
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

We have calculated the effects of the intense laser field on the total optical absorption coefficient (the linear and third-order nonlinear) for transition between two lower-lying electronic levels in the asymmetric parabolic GaAs/ Ga1-xAlxAs quantum well. Total absorption coefficient (linear and nonlinear absorption coefficient) for the transitions between any two electronic states was calculated by using density matrix formalism and the perturbation expansion method. Our results show that the effects of intense laser field and the well dimensions on the optical transitions are more pronounced. If well center is changed to be Lc < 0 (L-c > 0), effective well width decreases (increases) and thus we can obtain the red or blue shift in the peak position of the absorption coefficient by changing the intensities of the non-resonant intense laser field as well as dimensions of the well.