Linear and nonlinear optical properties at electronic resonance in Ruddlesden‒Popper perovskite quantum wells

El-Hamouchi J., Ben Hammou O., Ezzarfi A., Fakkahi A., Ed-Dahmouny A., Jaouane M., ...Daha Fazla

Physica B: Condensed Matter, cilt.733, 2026 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 733
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1016/j.physb.2026.418605
  • Dergi Adı: Physica B: Condensed Matter
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Compendex, INSPEC
  • Anahtar Kelimeler: Finite element method, Optical absorption coefficients, Refractive index changes, Ruddlesden‒Popper hybrid organic perovskites
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

In this work, we investigate the intrinsic optical absorption coefficients (OACs) and refractive-index changes (RICs) in Ruddlesden‒Popper hybrid-organic perovskites (RP‒HOP) quantum wells (QWs) using a compact-density-matrix formalism. The calculated spectra show pronounced OACs, reaching values as high as 9.5×106m−1, with significant RICs modulation. The nonlinear contributions to both OACs and RICs are found to be stronger for ⟨m⟩=3−4, while they remain weaker for ⟨m⟩=2. This behavior arises from the combined effects of quantum and dielectric confinements, as well as the effective-mass mismatch. Our results provide quantitative insight into how reduced dimensionality and dielectric environment shape the optical response in RP‒HOPs, highlighting their potential as tunable platforms for advanced electro-optic and integrated photonic applications.