Search
Now showing items 11-20 of 190
Optical properties of a triple AlGaAs/GaAs quantum well purported for quantum cascade laser active region
(3 December)
A theoretical investigation on the conduction electron states in a triple inverse parabolic AlGaAs/GaAs quantum
well, designed in the spirit of the active region for a quantum cascade laser, is performed. The study includes ...
Shallow Donor Impurity States with Excitonic Contribution in GaAs/AlGaAs and CdTe/CdSe Truncated Conical Quantum Dots under Applied Magnetic Field
(MDPI, 25 October)
Using the effective mass approximation in a parabolic two-band model, we studied the effects of the geometrical parameters, on the electron and hole states, in two truncated conical quantum dots: (i) GaAs-(Ga,Al)As in the ...
Position dependent effective mass effect on the quantum wells with three-parameter modified Manning potential
(17 June 20)
This article reports a theoretical study of the intersubband optical properties in quantum wells
with modified Manning potential considering the effects of position-dependent effective mass.
Calculations are made in the ...
Effect of magnetic field, size and donor position on the absorption coefficients related a donor within the core/shell/shell quantum dot
(2021)
In this study, linear, nonlinear and total optical absorption coefficients related a single shallow donor atom confined in semiconductor core/shell/shell quantum dot heterostructure are researched in detail within the ...
Zeeman splitting, Zeeman transitions and optical absorption of an electron confined in spherical quantum dots under the magnetic field
(2021)
In this study, we present a detailed theoretical investigation of the effect of an externally applied magnetic field on the energy states 1s, 1p, 1d and 1f in the spherical quantum dot with finite and infinite confinement ...
Influence of position dependent effective mass on impurity binding energy and absorption in quantum wells with the Konwent potential
(Elsevier, 13 July 20)
In this work, we perform a theoretical investigation on the effect of position-dependent effective mass on
binding energy and optical absorption coefficient for donor impurities in single and double quantum wells
defined ...
Optical properties of a quantum well with Razavy confinement potential: Role of applied external fields
(29 july 20)
In this present work, the effect of applied external fields and well width on the optical absorption and
refractive index change coefficient of a GaAs quantum well with Razavy confinement potential is theoretically
presented. ...
Control of electronic and optical properties of a laser dressed double quantum dot molecule by lateral electric field
(15 August )
We study the confined states of a molecule formed by two laterally coupled quantum dots. The static electric field and incident plane wave laser field are considered
with different polarization. The respective Shr¨odinger ...
Effect of intense laser and electric fields on nonlinear optical properties of cylindrical quantum dot with Morse potential
(4 March 20)
In this study, the influence of the external electric field on the nonlinear optical properties of a
laser dressed cylindrical quantum dot with axial Morse potential are theoretically investigated
using the total optical ...
Optical properties of spherical quantum dot in the presence of donor impurity under the magnetic field
(16 March 2)
In this study, the binding energies of an on-center and off-center hydrogenic donor impurity in a spherical
quantum dot with finite confinement potential under an applied external magnetic field are investigated
in detail ...