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AlGaAs Nonlinear Integrated Photonics

open access: yesMicromachines, 2022
Practical applications implementing integrated photonic circuits can benefit from nonlinear optical functionalities such as wavelength conversion, all-optical signal processing, and frequency-comb generation, among others.
Ehsan Mobini   +3 more
doaj   +3 more sources

Second-Harmonic Generation in Suspended AlGaAs Waveguides: A Comparative Study

open access: yesMicromachines, 2020
Due to adjustable modal birefringence, suspended AlGaAs optical waveguides with submicron transverse sections can support phase-matched frequency mixing in the whole material transparency range, even close to the material bandgap, by tuning the width-to ...
Giuseppe Leo   +2 more
exaly   +3 more sources

Optimising (Al,Ga) (As,Bi) Quantum Well Laser Structures for Reflectance Mode Pulse Oximetry [PDF]

open access: yesMicromachines
We explore quantum well laser diodes for applications in pulse oximetry based on two material systems, namely, classical AlGaAs and a rather exotic GaAsBi, with lasing at around 800 nm and 1100 nm, respectively.
Aivaras Špokas   +11 more
doaj   +2 more sources

Advanced AlGaAs/GaAs Heterostructures Grown by MOVPE

open access: yesCrystals, 2019
AlGaAs/GaAs heterostructures are the base of many semiconductor devices. The fabrication of new types of devices demands heterostructures with special features, such as large total thickness (~20 μm), ultrathin layers (~1 nm), high repeatability (up
Timur Bagaev   +2 more
exaly   +3 more sources

Near-infrared photoluminescence in n-GaAs/AlGaAs quantum wells with different locations of compensating acceptor impurity

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
In the paper, comparative studies of near-IR photoluminescence (PL) in structures with GaAs/AlGaAs quantum wells possessing different selective doping profiles have been performed.
Adamov Roman   +7 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

Supercontinuum generation in dispersion engineered AlGaAs-on-insulator waveguides

open access: yesScientific Reports, 2021
The effect of engineering the dispersion of AlGaAs-on-insulator (AlGaAs-OI) waveguides on supercontinuum generation is investigated at telecom wavelengths.
Stuart May, Matteo Clerici, Marc Sorel
doaj   +1 more source

Dual gate material (Au and Pt) based double-gate MOSFET for high-speed devices

open access: yesTecnología en Marcha, 2021
Aluminium Gallium Arsenide (AlGaAs) is a semiconductor material used in the latest design of double heterostructure laser diodes. This semiconductor is mostly available in the arbitrary alloy form between Gallium Arsenide and Aluminium Arsenide.
Naveenbalaji Gowthaman   +1 more
doaj   +1 more source

Prediction of the electrical characteristics of heterostructural microwave devices with transverse current transfer based on a quantum-mechanical self-consistent model of a nanoscale channel with taking into account inter-valley scattering [PDF]

open access: yesITM Web of Conferences, 2019
A mathematical model of current transfer in AlGaAs- heterostructures with taking into account inter-valley dispersion and space charge in the process of degradation is presented.
Vetrova Natalia   +6 more
doaj   +1 more source

Optimization of GaAs Nanowire Pin Junction Array Solar Cells by Using AlGaAs/GaAs Heterojunctions

open access: yesNanoscale Research Letters, 2018
We optimized the performance of GaAs nanowire pin junction array solar cells by introducing AlGaAs/GaAs heterejunctions. AlGaAs is used for the p type top segment for axial junctions and the p type outer shell for radial junctions.
Yao Wu   +5 more
doaj   +1 more source

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