Results 11 to 20 of about 1,513,497 (299)

Experimental and Modeling Study on the High-Performance p++-GaAs/n++-GaAs Tunnel Junctions with Silicon and Tellurium Co-Doped InGaAs Quantum Well Inserted

open access: yesCrystals, 2020
The development of high-performance tunnel junctions is critical for achieving high efficiency in multi-junction solar cells (MJSC) that can operate at high concentrations.
Yudan Gou   +10 more
doaj   +1 more source

Photoluminescence of tetrahedral quantum-dot quantum wells [PDF]

open access: yesPhysica E: Low-dimensional Systems and Nanostructures, 2004
4 pages, 4 figures, E-mail addresses: vladimir@ee.ucr.edu, ep@pokatilov.moldline.net, vladimir.fomin@ua.ac.be, jozef.devreese@ua.ac.be, to be published in Phys.
Fonoberov, V.A.   +3 more
openaire   +7 more sources

Theoretical Investigation on Microcavity Coupler for Terahertz Quantum-Well Infrared Photodetectors

open access: yesIEEE Access, 2020
Resonant behaviors and absorption enhancement of metallic grating-dielectric-metal (GDM) microcavity are theoretically investigated. The GDM structure is treated as periodic unit cells of two serially-connected metal-dielectric-metal (MDM) and air ...
Xuguang Guo   +5 more
doaj   +1 more source

Coherent Control of Perfect Optical Vortex Through Four-Wave Mixing in an Asymmetric Semiconductor Double Quantum Well

open access: yesFrontiers in Physics, 2022
A scheme for the coherent control of perfect optical vortex (POV) in an asymmetric semiconductor double quantum well (SDQW) nanostructure is proposed by exploiting the tunneling-induced highly efficient four-wave mixing (FWM).
Xu Deng, Tao Shui, Wen-Xing Yang
doaj   +1 more source

Quantum noise and dynamics in quantum well and quantum wire lasers [PDF]

open access: yes, 1984
We calculate the relaxation oscillation corner frequency fr and the linewidth enhancement factor alpha for both a quantum well and a quantum wire semiconductor laser.
Arakawa, Yasuhiko   +2 more
core   +1 more source

Deep learning neural network for approaching Schrödinger problems with arbitrary two-dimensional confinement

open access: yesMachine Learning: Science and Technology, 2023
This article presents an approach to the two-dimensional Schrödinger equation based on automatic learning methods with neural networks. It is intended to determine the ground state of a particle confined in any two-dimensional potential, starting from ...
A Radu, C A Duque
doaj   +1 more source

Modeling Quantum Well Lasers [PDF]

open access: yesMathematical Problems in Engineering, 2012
In semiconductor laser modeling, a good mathematical model gives near‐reality results. Three methods of modeling solutions from the rate equations are presented and analyzed. A method based on the rate equations modeled in Simulink to describe quantum well lasers was presented.
Anghel, Dan Alexandru   +2 more
openaire   +2 more sources

Monolithic Fabrication of InGaAs/GaAs/AlGaAs Multiple Wavelength Quantum Well Laser Diodes via Impurity-Free Vacancy Disordering Quantum Well Intermixing

open access: yesIEEE Journal of the Electron Devices Society, 2017
InGaAs/GaAs/AlGaAs multiple wavelength quantum well (QW) semiconductor laser diodes (LDs) have been fabricated by impurity-free vacancy disordering (IFVD) QW intermixing (QWI) method.
Zhongliang Qiao   +7 more
doaj   +1 more source

Growth and Characterization of GaN/InxGa1−xN/InyAl1−yN Quantum Wells by Plasma-Assisted Molecular Beam Epitaxy

open access: yesCrystals, 2022
The nearly lattice-matched InxGa1−xN/InyAl1−yN epi-layers were grown on a GaN template by plasma-assisted molecular beam epitaxy with a metal modulation technique. The band-gap energy of InxGa1−xN QW in photoluminescence measurement was estimated to be 2.
Huei-Jyun Shih   +6 more
doaj   +1 more source

Magnetically controlled exciton transfer in hybrid quantum dot-quantum well nanostructures [PDF]

open access: yes, 2019
A magnetophotoluminescence study of the carrier transfer with hybrid InAs/GaAs quantum dot(QD)-InGaAs quantum well (QW) structures is carried out where we observe an unsual dependence of the photoluminescence (PL) on the GaAs barrier thickness at strong ...
Alén, B.   +10 more
core   +2 more sources

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