Nonlinear optical rectification and second-harmonic generation in a semi-parabolic quantum well under intense laser field: Effects of electric and magnetic fields

Ungan F., Martinez-Orozco J. C., Restrepo R. L., Mora-Ramos M. E., Kasapoglu E., Duque C. A.

SUPERLATTICES AND MICROSTRUCTURES, cilt.81, ss.26-33, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 81
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.spmi.2015.01.016
  • Dergi Adı: SUPERLATTICES AND MICROSTRUCTURES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.26-33
  • Anahtar Kelimeler: Quantum well, Nonlinear optics, Intense laser field, Second-harmonic generation, 3RD HARMONIC-GENERATION, 3RD-HARMONIC GENERATION, ABSORPTION, 2ND
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

The effects of electric and magnetic fields on the nonlinear optical rectification and second harmonic generation coefficients related with intersubband transitions in a semi-parabolic quantum well under intense laser field are theoretically studied. The energy levels and corresponding wave functions are obtained by solving the conduction band Schrodinger-like equation in the parabolic approximation and the envelope function approach. Numerical calculations are presented for a typical GaAs/Ga1-xAlxAs quantum well. The results show that both the non-resonant intense laser field and the static external fields have significant influences on the magnitude and resonant peak energy positions of the coefficients under study. (C) 2015 Elsevier Ltd. All rights reserved.