Results 1 to 10 of about 119,836 (277)

Current state of the research on optoacoustic fiber-optic ultrasonic transducers based on thermoelastic effect and fiber-optic interferometric receivers

open access: yesКомпьютерная оптика, 2023
The work is devoted to an overview of the current state of optoacoustic fiber-optic ultrasonic transducers based on thermoelastic effect and fiber-optic interference receivers, its scope, technologies and materials used, the advantages and disadvantages ...
A.P. Mikitchuk   +2 more
doaj   +1 more source

Effect of Nitrogen Atoms in the CNT Structure on the Gas Sensing Properties of PANI/CNT Composite

open access: yesApplied Sciences, 2022
Herein we report the gas-sensitive properties to ammonia (at 2–10 ppm) of individual nanostructures of a polyaniline/nitrogen-doped carbon nanotube composite with a nitrogen content of 0 at.% (uCNTs), 2 at.% (N-CNTs) and 4 at.% (N+-CNTs).
Ivan A. Lobov   +4 more
doaj   +1 more source

Modeling of spontaneous emission in presence of cylindrical nanoobjects: the scattering matrix approach

open access: yesКомпьютерная оптика, 2023
We propose a method of analysis of spontaneous emission of a quantum emitter (an atom, a luminescence center, a quantum dot) inside or in vicinity of a cylinder.
V.V. Nikolaev   +2 more
doaj   +1 more source

Tunable photoconductive devices based on graphene/WSe2 heterostructures [PDF]

open access: yesEPJ Web of Conferences, 2022
Optoelectronic tunability in van der Waals heterostructures is essential for their optoelectronic applications. In this work, tunable photoconductive properties were investigated in the heterostructures of WSe2 and monolayer graphene with different ...
Tang Hongyu, Tagliabue Giulia
doaj   +1 more source

Structural Properties and Energy Spectrum of Novel GaSb/AlP Self-Assembled Quantum Dots

open access: yesNanomaterials, 2023
In this work, the formation, structural properties, and energy spectrum of novel self-assembled GaSb/AlP quantum dots (SAQDs) were studied by experimental methods.
Demid S. Abramkin   +10 more
doaj   +1 more source

Models of dynamics of complex heterostructures under pulsed force effects [PDF]

open access: yesE3S Web of Conferences, 2023
Relevance is due to insufficient knowledge and development of models of dynamics of complex heterostructures. Modern mechatronic systems include hybrid components consisting of complex heterogeneous structures: mechanical, electrical, electronic, etc ...
Volnikov Mikhail
doaj   +1 more source

Dynamics of Vacancy Formation and Distribution in Semiconductor Heterostructures: Effect of Thermally Generated Intrinsic Electrons

open access: yesNanomaterials, 2023
The effect of thermally generated equilibrium carrier distribution on the vacancy generation, recombination, and mobility in a semiconductor heterostructure with an undoped quantum well is studied.
Timur S. Shamirzaev   +3 more
doaj   +1 more source

Dislocation Filter Based on LT-GaAs Layers for Monolithic GaAs/Si Integration

open access: yesNanomaterials, 2022
The use of low-temperature (LT) GaAs layers as dislocation filters in GaAs/Si heterostructures (HSs) was investigated in this study. The effects of intermediate LT-GaAs layers and of the post-growth and cyclic in situ annealing on the structural ...
Mikhail O. Petrushkov   +12 more
doaj   +1 more source

HARDWARE-SOFTWARE COMPLEX OF DEFINITION OF THE FUNCTIONAL STATUS OF THE PERSON AT INFLUENCE OF LIGHT WITH THE VARIED SPECTRAL COLOR PARAMETERS

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2019
The article deals with the main circuitry and software aspects of the creation LED dynamically controlled system of high-quality lighting with the broad range of color temperatures Tc = 1700 - 10000 K a part of experimental installation hardware-software
Aladov Andrei   +5 more
doaj   +1 more source

Recent progress in mid-infrared photodetection devices using 2D/nD (n=0, 1, 2, 3) heterostructures

open access: yesMaterials & Design, 2023
Mid-infrared (MIR) photodetection plays an important role in a variety of modern technologies, such as biomedical devices, free-space communication and security.
Haoran Li, Zhibin Yang
doaj   +1 more source

Home - About - Disclaimer - Privacy