Impurity related optical properties in tuned quantum dot/ring systems

S Pal, M Ghosh, CA Duque - Philosophical Magazine, 2019 - Taylor & Francis
In this paper, we explore the linear, third-order nonlinear, and total optical absorption
coefficient (OAC) and refractive index change coefficient (RICC) of a GaAs doped quantum …

Electronic and intraband optical properties of single quantum rings under intense laser field radiation

A Radu, AA Kirakosyan, D Laroze… - Journal of Applied …, 2014 - pubs.aip.org
The influence of an intense laser field on one-electron states and intraband optical
absorption coefficients is investigated in two-dimensional GaAs/Ga 0.7 Al 0.3 As quantum …

The effects of the intense laser and homogeneous electric fields on the electronic and intraband optical properties of a GaAs/Ga0. 7 Al0. 3As quantum ring

A Radu, AA Kirakosyan, D Laroze… - Semiconductor …, 2015 - iopscience.iop.org
The simultaneous influences of an intense laser field and static electric field on one-electron
states and intraband optical absorption coefficient are investigated in two-dimensional …

Effects of the temperature and pressure on the electronic and optical properties of an exciton in GaAs/Ga1− xAlxAs quantum ring

K El-Bakkari, A Sali, E Iqraoun, A Rezzouk… - Physica B: Condensed …, 2018 - Elsevier
Using a variational approach, we have calculated the binding energies (E 1 s, 2 sb) and
interband emission energy (E ph) of an exciton confined in G a A s/G a 1− x A lx A s quantum …

The effect of hydrostatic pressure, temperature and impurity factor on linear and nonlinear optical properties of InxGa1-xAs tuned quantum dot with modified Gaussian …

S Kumar, M Kumar, N Deopa, A Kumar - Optik, 2024 - Elsevier
This study presents a detailed theoretical analysis of the effects of hydrostatic pressure,
temperature, impurity factors, and external electric fields on the optical properties of In x Ga 1 …

Influence of a non-resonant intense laser and structural defect on the electronic and optical properties of a gaas quantum ring under inversely quadratic potential

JC León-González, RG Toscano-Negrette… - Condensed …, 2023 - mdpi.com
We investigated the impact of a non-resonant intense laser, structural defects, and magnetic
fields on the electronic and optical properties of a simple GaAs quantum ring under the …

Electronic and optical properties of eccentric quantum ring under parallel magnetic field

D Nasri - Physica B: Condensed Matter, 2021 - Elsevier
Using the effective mass approximation, within the plane wave expansion, the effect of in-
plane magnetic field on the electronic states and the intersubband optical absorption in a …

Magnetic field effects on intraband transitions in elliptically polarized laser-dressed quantum rings

JA Vinasco, A Radu, RL Restrepo, AL Morales… - Optical Materials, 2019 - Elsevier
The combined influence of externally applied magnetic and non-resonant intense laser
fields (ILF) on the electronic states of GaAs-based two-dimensional circular quantum rings is …

Electron spin and donor impurity effects on the absorption spectra of pseudo-elliptic quantum rings under magnetic field

D Bejan, C Stan - Philosophical Magazine, 2021 - Taylor & Francis
We investigated comparatively the electronic and optical properties of GaAs/GaAlAs pseudo-
elliptic quantum rings with donor impurity under magnetic field in the absence and the …

Donor-impurity related photoionization cross section in GaAs/Ga1− xAlxAs concentric double quantum rings: Effects of geometry and hydrostatic pressure

HM Baghramyan, MG Barseghyan… - Physica B: Condensed …, 2014 - Elsevier
The donor-impurity related photoionization cross section in GaAs/Ga 1− x Al x As three-
dimensional concentric double quantum rings is investigated. The photoionization cross …