Results 31 to 40 of about 16,375 (210)

Suspended AlGaAs-Integrated Nonlinear Photonics

open access: yes, 2023
AlGaAs is a promising integrated nonlinear photonics material with enormous optical nonlinearity and high refractive index. Nevertheless, presently AlGaAs microring resonators exhibiting high quality factors and tight optical confinement rely ...
Yanjun Han (3069789)   +8 more
core   +1 more source

Mobility of a two-dimensional electron gas in the AlGaAs/GaAs heterostructure: simulation and analysis [PDF]

open access: yesITM Web of Conferences, 2019
At temperatures above 100 K, a two-dimensional electron gas generated at the AlGaAs/GaAs heterointerface can be characterized by the three dominant scattering mechanisms: acoustic deformation potential, polar acoustic phonon and polar optical phonon.
Volcheck Vladislav, Stempitsky Viktor
doaj   +1 more source

Role of the substrate in monolithic AlGaAs nonlinear nanoantennas

open access: yesNanophotonics, 2017
We report the effect of the aluminum oxide substrate on the emission of monolithic AlGaAs-on-insulator nonlinear nanoantennas. By coupling nonlinear optical measurements with electron diffraction and microscopy observations, we find that the oxidation ...
Gili Valerio Flavio   +12 more
doaj   +1 more source

Facet-Related Non-uniform Photoluminescence in Passivated GaAs Nanowires

open access: yesFrontiers in Chemistry, 2020
The semiconductor nanowire architecture provides opportunities for non-planar electronics and optoelectronics arising from its unique geometry. This structure gives rise to a large surface area-to-volume ratio and therefore understanding the effect of ...
Nian Jiang   +7 more
doaj   +1 more source

Spin transport of excitons [PDF]

open access: yes, 2009
We report on observation of the spin transport of spatially indirect excitons in GaAs/AlGaAs coupled quantum wells (CQW). Exciton spin transport over substantial distances, up to several micrometers in the present work, is achieved due to orders of ...
Butov, L.V.   +10 more
core   +1 more source

High-temperature analysis of optical coupling using AlGaAs/GaAs LEDs for high-density integrated power modules

open access: yesScientific Reports, 2022
A low-temperature co-fired ceramic (LTCC)-based optocoupler design is demonstrated as a possible solution for optical isolation in high-density integrated power modules. The design and fabrication of LTCC based package are discussed.
Syam Madhusoodhanan   +7 more
doaj   +1 more source

Single-mode operated multimode AlGaAs-on-insulator microring resonators for Kerr comb generation [PDF]

open access: yesEPJ Web of Conferences, 2023
We present a tapered coupler design to achieve single-mode operation in multimode microring resonators and experimentally demonstrate Kerr comb generation in a high-Q, single-mode operated AlGaAs-on-insulator multimode microring resonator.
Ye Chaochao   +6 more
doaj   +1 more source

GaAs/AlGaAs Nanowire Photodetector [PDF]

open access: yesNano Letters, 2014
We demonstrate an efficient core-shell GaAs/AlGaAs nanowire photodetector operating at room temperature. The design of this nanoscale detector is based on a type-I heterostructure combined with a metal-semiconductor-metal (MSM) radial architecture, in which built-in electric fields at the semiconductor heterointerface and at the metal/semiconductor ...
Dai, Xing   +7 more
openaire   +4 more sources

Study on the high-power semi-insulating GaAs PCSS with quantum well structure

open access: yesAIP Advances, 2016
A high-power semi-insulating GaAs photoconductive semiconductor switch (PCSS) with quantum well structure was fabricated. The AlGaAs layer was deposited on the surface of the GaAs material, and the reflecting film and the antireflection film have been ...
Chongbiao Luan   +5 more
doaj   +1 more source

Dataset representing the effect of indirect band gap region of Cd-free AlGaAs buffer layer in Cu(In,Ga)Se photovoltaic cell

open access: yesData in Brief, 2017
The dataset of physical properties for the proposed CIGS solar cell with Cd-free AlGaAs buffer layer has been depicted in this data article. The cell performance outcome due to different AlGaAs buffer layer band gap is reported along with optimum solar ...
Sadia Islam Shachi, Ali Newaz Bahar
doaj   +1 more source

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