Theoretical investigation of optical properties in GaAs quantum wells under position-dependent mass and semi-confined effects

AL E. B., Jafarov E., Jafarova A., UNGAN F.

Physics Letters, Section A: General, Atomic and Solid State Physics, cilt.582, 2026 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 582
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1016/j.physleta.2026.131572
  • Dergi Adı: Physics Letters, Section A: General, Atomic and Solid State Physics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Compendex, INSPEC, MathSciNet, Philosopher's Index, zbMATH
  • Anahtar Kelimeler: Non-linear optical rectification, Optical absorption coefficient, Position-dependent effective mass, Quantum well, Refractive index change, Semi-confinement effect
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

In this study, the fundamental optical properties such as linear, non-linear and total optical absorption coefficients, refractive index changes and non-linear optical rectification are theoretically analyzed using the quantum well model based on the GaAs compound. The system is modeled considering both the position-dependent effective mass and the semi-confined potential. The equations are solved analytically and numerical calculations are performed in light of the obtained energy values and wave functions. Moreover, the compact density matrix formalism is employed to evaluate the linear and non-linear optical responses of the structure. In addition, the effects of the transition frequency, external electric field and well width on the optical responses are investigated in detail. The obtained results provide important information to evaluate the potential of the structure in optoelectronic applications.