Third-order nonlinear optical susceptibility of hydrogenic impurity in Ge/Si0.15Ge0.85 spherical core/shell quantum dots under electric field

Hammouda K., Yahyaoui N., Zeiri N., Ed-Dahmouny A., BAŞER P., Sali A., ...Daha Fazla

Solid State Communications, cilt.383, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 383
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.ssc.2024.115480
  • Dergi Adı: Solid State Communications
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, DIALNET, Civil Engineering Abstracts
  • Anahtar Kelimeler: External electric field, Hydrogenic impurity, Optical properties, Spherical quantum dots
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

In this review, we have investigated theoretically the third-order nonlinear optical susceptibility in Ge/Si0.15Ge0.85 spherical core/shell quantum dots under electric field (EF) for both cases with and without on-center impurity within the framework of the compact-density-matrix (C.D.M). The eigenenergies and their corresponding wave functions of the system are computed by solving the three-dimensional Schrödinger equation using the effective mass approximation (E.M.A) using the variational method (VM). Our computational results show that both the energy levels and the third-order nonlinear optical susceptibility are strongly affected by the quantum dot size, the effects of the hydrogenic impurity, and the electric field intensity.