Results 11 to 20 of about 28,479 (266)

Effects of an External Magnetic Field on the Interband and Intraband Optical Properties of an Asymmetric Biconvex Lens-Shaped Quantum Dot

open access: yesNanomaterials, 2021
The theoretical investigation of interband and intraband transitions in an asymmetric biconvex lens-shaped quantum dot are considered in the presence of an external magnetic field. The selection rules for intraband transitions are obtained. The behaviors
Mher A. Mkrtchyan   +7 more
doaj   +1 more source

Quantum Transport in Open Nanostructures [PDF]

open access: yesVLSI Design, 1998
Electron transport was studied in an open square quantum dot with a dimension typical for current experiments. A numerical analysis of the probability density distribution inside the dot was performed which enabled us to unambiguously map the resonant states which dominate the conductance of the structure.
I. V. Zozoulenko, K.-F. Berggren
openaire   +1 more source

Quantum Spectroscopy of Plasmonic Nanostructures [PDF]

open access: yesPhysical Review X, 2014
We use frequency entangled photons, generated via spontaneous parametric down conversion, to measure the broadband spectral response of an array of gold nanoparticles exhibiting Fano-type plasmon resonance. Refractive index sensing of a liquid is performed by measuring the shift of the array resonance.
Dmitry A. Kalashnikov   +3 more
openaire   +3 more sources

Temperature-Dependent Photoluminescent Properties of PbSe Nanoplatelets

open access: yesNanomaterials, 2020
Semiconductor colloidal nanoplatelets (NPLs) are a promising new class of nanostructures that can bring much impact on lightning technologies, light-emitting diodes (LED), and laser fabrication.
Ivan Skurlov   +8 more
doaj   +1 more source

On the Controllability of Quantum Transport in an Electronic Nanostructure [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2014
We investigate the controllability of quantum electrons trapped in a two-dimensional device, typically a MOS field-effect transistor. The problem is modeled by the Schrödinger equation in a bounded domain coupled to the Poisson equation for the electrical potential. The controller acts on the system through the boundary condition on the potential, on a
Méhats, Florian   +2 more
openaire   +4 more sources

Localization in semiconductor quantum-wire nanostructures [PDF]

open access: yesPhysical Review B, 1995
Localization properties of quasi-one dimensional quantum wire nanostructures are investigated using the transfer matrix-Lyapunov exponent technique. We calculate the localization length as a function of the effective mean-field mobility assuming the random disorder potential to be arising from dopant-induced short-range $δ$-function or finite-range ...
Liu, Dongzi, Sarma, S. Das
openaire   +3 more sources

Semiconductor Quantum Wells and Nanostructures

open access: yesNanomaterials, 2023
Semiconductor quantum wells and nanostructures have been the main quantum and classical physical objects in condensed matter physics for over half a century, since the discovery of the two-dimensional electron gas in silicon MOSFETs and size quantization in thin bismuth films [...]
openaire   +3 more sources

Nonparabolic effects in multiple quantum well structures and influence of external magnetic field on dipole matrix elements [PDF]

open access: yesElectronics, 2015
We present a method of modeling of nonparabolic effects (NPE) in quantum nanostructures by using second order perturbation theory. We apply this model on multiple quantum well structures and consider the influence of external magnetic field on dipole ...
Aleksandar Demić   +2 more
doaj   +1 more source

Temperature Dependence of Carrier Extraction Processes in GaSb/AlGaAs Quantum Nanostructure Intermediate-Band Solar Cells

open access: yesNanomaterials, 2021
From the viewpoint of band engineering, the use of GaSb quantum nanostructures is expected to lead to highly efficient intermediate-band solar cells (IBSCs).
Yasushi Shoji   +2 more
doaj   +1 more source

Exciton-polariton dynamics of the single site-controlled quantum dot-nanocavity in the coexisting strong-weak coupling regime

open access: yesNew Journal of Physics, 2023
Deterministic positioning single site-controlled high symmetric InGaAs quantum dots (QDs) in (111)B-oriented GaAs photonic crystal cavities with nanometer-scale accuracy provides an idea component for building integrated quantum photonic circuits ...
Jiahui Huang   +8 more
doaj   +1 more source

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