Results 11 to 20 of about 255,662 (266)

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

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

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

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

CALCULATION OF ELASTICALLY STRESSED QUANTUM WELLS HETEROSTRUCTURE AlXGaYIn1-X-YAs/InP FOR EFFICIENT DIODE LASERS

open access: yesРоссийский технологический журнал, 2018
The compositions of epitaxial layers forming quantum-well heterostructures AlxGayIn1-x-yAs / InP for laser diodes with the radiation wavelength of 1.55 μm are calculated.
V. N. Svetogorov   +4 more
doaj   +1 more source

Stimulated Emission up to 2.75 µm from HgCdTe/CdHgTe QW Structure at Room Temperature

open access: yesNanomaterials, 2022
Heterostructures with thin Hg(Cd)Te/CdHgTe quantum wells (QWs) are attractive for the development of mid-infrared interband lasers. Of particular interest are room-temperature operating emitters for the short-wavelength infrared range (SWIR, typically ...
Vladimir V. Utochkin   +12 more
doaj   +1 more source

PbSe/CdTe single quantum well infrared detectors

open access: yesAIP Advances, 2017
We report on the fabrication and characterization of a new type of mid-infrared photodetector. The infrared sensitive element of the detector is a PbSe single quantum well (SQW) embedded in an intrinsic region of a CdTe p-i-n diode. Electron-beam-induced
S. Chusnutdinow   +3 more
doaj   +1 more source

Effect of variation of specifications of quantum well and contact length on performance of InP-based Vertical Cavity Surface Emitting Laser (VCSEL) [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2020
: In this study, the effects of variation of thickness and the number of quantumwells as well as the contact length were investigated. In this paper, a vertical cavity surfaceemitting laser was simulated using of software based on finite element method ...
Abbas Ghadimi, Mohamad Ahmadzadeh
doaj  

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