Linear and nonlinear optical properties of ZnO/ZnS and ZnS/ZnO core shell quantum dots: Effects of shell thickness, impurity, and dielectric environment

Z Zeng, CS Garoufalis, AF Terzis… - Journal of Applied …, 2013 - pubs.aip.org
In the present work, we investigated theoretically the linear, nonlinear, and total absorption
coefficients and refractive index changes associated with intersubband transitions in …

Tuning Optical Properties of Al2O3/ZnO Nanolaminates Synthesized by Atomic Layer Deposition

AA Chaaya, R Viter, I Baleviciute… - The Journal of …, 2014 - ACS Publications
Nanolaminates are of great interest for their unique properties such as high dielectric
constants and advanced mechanical, electrical, and optical properties. Here we report on …

The third-order nonlinear optical susceptibility in an ellipsoidal core-shell quantum dot embedded in various dielectric surrounding matrices

A Ed-Dahmouny, N Zeiri, R Arraoui, N Es-Sbai… - Physica E: Low …, 2023 - Elsevier
The finite-element method (FEM) and the effective-mass approximation (EMA) were used in
this study to evaluate the energy eigenvalues and describe the third-order susceptibility for …

Effects of probe field intensity in nonlinear optical processes in asymmetric semiconductor quantum dots

E Paspalakis, J Boviatsis, S Baskoutas - Journal of Applied Physics, 2013 - pubs.aip.org
We study nonlinear optical absorption and nonlinear optical rectification in an asymmetric
semiconductor quantum dot structure under a strong probe field excitation. We apply a form …

Two-photon absorption in colloidal semiconductor nanocrystals: A Review

A Alo, JC Lemus, CA Sousa… - Journal of Physics …, 2023 - iopscience.iop.org
Large two-photon absorption (2PA) cross-section combined with high emission quantum
efficiency and size-tunable bandgap energy has put colloidal semiconductor nanocrystals …

[HTML][HTML] Theoretical modeling of nonlinear optical properties in spheroidal CdTe/ZnTe core/shell quantum dot embedded in various dielectric matrices

S Hértilli, N Yahyaoui, N Zeiri, P Baser, M Said… - Results in Physics, 2024 - Elsevier
The theoretical investigation of the electronic and nonlinear optical properties in spheroid-
shaped CdTe/ZnTe core/shell quantum dots (CSQDs) embedded into two commonly …

The influence of the dielectric surrounding medium on energy levels and optical responses of an on-center impurity in a core/shell spherical nanodot

A Ed-Dahmouny, N Zeiri, A Sali, N Es-Sbai… - The European Physical …, 2024 - Springer
In the context of effective mass approximation and using the finite element method, we
studied the optical properties of a hydrogenic donor impurity centered in a core/shell …

Linear and nonlinear magneto-optical properties of an off-center single dopant in a spherical core/shell quantum dot

E Feddi, A Talbi, ME Mora-Ramos, M El Haouari… - Physica B: Condensed …, 2017 - Elsevier
Using the effective mass approximation and a variational procedure, we have investigated
the nonlinear optical absorption coefficient and the relative refractive index changes …

Phase-dependent optical effects in a four-level quantum system near a plasmonic nanostructure

E Paspalakis, S Evangelou, V Yannopapas… - Physical Review A …, 2013 - APS
We study the linear absorption and dispersion properties of a four-level double-V-type
quantum system near a plasmonic nanostructure. The quantum system interacts with two …

Nonlinear optical properties of GaAs pyramidal quantum dots: Effects of elliptically polarized radiation, impurity, and magnetic applied fields

EC Niculescu, D Bejan - Physica E: Low-dimensional Systems and …, 2015 - Elsevier
The effects of the magnetic field and impurity position on the electronic states and nonlinear
light absorption in a GaAs pyramidal quantum dot are investigated. The calculations were …