Examination of influences of external fields and structural parameters on the nonlinear optical properties of the GaAs/GaAlAs single quantum well with modified Lennard-Jones potential

Sayrac H., Tuzemen A. T., Al E. B., Sayrac M., Ungan F.

Physica Scripta, cilt.100, sa.7, 2025 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 100 Sayı: 7
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1088/1402-4896/ade020
  • Dergi Adı: Physica Scripta
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, zbMATH
  • Anahtar Kelimeler: external fields, optical absorption coefficients, refractive index changes, single quantum well, structural parameters
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

In our investigation, we analyzed the variations in both linear and nonlinear optical properties of the GaAs/GaAlAs single quantum well heterostructure with modified Lennard-Jones potential under the conditions where external fields and the adjustable physical parameters of the structure are changed. We get the solution of the Schrödinger equation for identifying the subband energy levels with their wave functions taking advantage of the diagonalization method, effective mass approach, and parabolic band model. As a result, we find that the changes in the applied external fields and structure parameters have effects on the total optical absorption coefficients and total relative refractive index changes. While the optical response becomes red-shifted with the increment of applied electric, magnetic and intense laser fields and the well width, it becomes blue-shifted with the increment of the well depth.