Results 21 to 30 of about 36,563 (205)

Soliton-emitting AlGaAs waveguide

open access: yesOptics Express, 1998
Simulations of soliton emission and propagation in a linear AlGaAs waveguide with one nonlinear cladding are presented. The device, which has realistic parameters, operates below half the bandgap and emits light into the cladding for a given input power.
P, Dumais   +3 more
openaire   +2 more sources

Self-Catalyzed AlGaAs Nanowires and AlGaAs/GaAs Nanowire-Quantum Dots on Si Substrates [PDF]

open access: yesThe Journal of Physical Chemistry C, 2021
Self-catalyzed AlGaAs nanowires (NWs) and NWs with a GaAs quantum dot (QD) were monolithically grown on Si(111) substrates via solid-source molecular beam epitaxy. This growth technique is advantageous in comparison to the previously employed Au-catalyzed approach, as it removes Au contamination issues and renders the structures compatible with ...
Boras, Giorgos   +12 more
openaire   +6 more sources

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

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

AlGaAs-On-Insulator Nonlinear Photonics [PDF]

open access: yes, 2015
The combination of nonlinear and integrated photonics has recently seen a surge with Kerr frequency comb generation in micro-resonators as the most significant achievement.
Ottaviano, Luisa   +3 more
core   +2 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

Sharp interfaces in p+-AlGaAs/n-GaAs epitaxial structures obtained by MOCVD

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2014
The complexity of forming sharp and high-quality boundaries in p+AlGaAs/n-GaAs systems by MOCVD method is caused by differing on 80–120°С optimal crystallization temperature of GaAs layers and n-AlGaAs solid solutions.
N. M. Vakiv   +4 more
doaj   +1 more source

Change of the Optoelectronic Properties of Semiconductor Compounds Induced by Nanosecond Laser Irradiation Pulses

open access: yesФізика і хімія твердого тіла
New research has discovered discrepancies in the melting points, plasma generation, and resulting changes in optoelectronic properties of semiconductor materials A2B6 and A3B5 when exposed to laser light, even when the experimental conditions are the ...
S. Levytskyi, Z. Cao, О. Koba, М. Koba
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

Nonlinear electron transport in normally pinched-off quantum wire

open access: yes, 2000
Nonlinear electron transport in normally pinched-off quantum wires was studied. The wires were fabricated from AlGaAs/GaAs heterostructures with high-mobility two-dimensional electron gas by electron beam lithography and following wet etching. At certain
Brown R. J.   +17 more
core   +1 more source

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