Results 11 to 20 of about 209,138 (268)

The Amplification and Polarization Control of Transmitted Radiation by a Graphene-Containing Photonic Cell

open access: yesPhotonics, 2023
The transformation of the transmission spectra of linearly polarized radiation passing through a symmetric photonic cell is studied based on numerical analysis.
Svetlana V. Eliseeva   +2 more
doaj   +1 more source

Design of Temperature Sensor Based on One-Dimensional Photonic Crystal Containing Si–BGO Layer

open access: yesMaterials Open, 2023
This paper describes the theoretical investigation of enhancement in temperature sensitivity using one-dimensional (1D) symmetric defective photonic crystal (PC) containing Si (Silicon) and Bi4Ge3O[Formula: see text] (Bismuth Germanate, BGO) material ...
Sanjeev K. Srivastava
doaj   +1 more source

Absorption and photoconductivity spectra of amorphous multilayer structures

open access: yesBeilstein Journal of Nanotechnology, 2020
The experimental results regarding optical absorption and steady-state photoconductivity of amorphous single-layer structures (Al–As0.40S0.30Se0.30–Al, Al–Ge0.09As0.09Se0.82–Al, and Al–Ge0.30As0.04S0.66–Al) and of an amorphous heterostructure (Al–As0 ...
Oxana Iaseniuc, Mihail Iovu
doaj   +1 more source

Transmission and Reflection Spectra of a Bragg Microcavity Filled with a Periodic Graphene-Containing Structure

open access: yesApplied Sciences, 2023
The transmission and reflection spectra of a one-dimensional microresonator structure with dielectric Bragg mirrors, the working cavity of which is filled with several “dielectric-graphene” or “semiconductor-graphene” periods with controlled material ...
Irina V. Fedorova   +2 more
doaj   +1 more source

Control of Electrical and Optical Parameters of Humidity Sensors Active Elements Based on Tin Oxides Films with Variable Composition

open access: yesПриборы и методы измерений, 2019
The aim of this work is development of technique for synthesis of tin oxides films with various stoichiometric composition, characterized by high electrical conductivity and light transmittance in the UV and visible range of the electromagnetic spectrum,
D. V. Adamchuck, V. K. Ksenevich
doaj   +1 more source

Charge Density-Versus Time-Controlled Pulse Anodization in the Production of PAA-Based DBRs for MIR Spectral Region

open access: yesEnergies, 2021
A robust and reliable method for fabricating porous anodic alumina (PAA)-based distributed Bragg reflectors (DBRs), operating in mid-infrared (MIR) spectral region, is presented.
Ewelina Białek   +3 more
doaj   +1 more source

Two-Dimensional Phononic Crystal Based Sensor for Characterization of Mixtures and Heterogeneous Liquids

open access: yesSensors, 2022
We show new approaches to developing acoustic liquid sensors based on phononic crystals. The proposed phononic crystal integrates fluidic elements. A solid block with periodic cylindrical holes contains a defect—a liquid-filled cylindrical cavity. We pay
Nikolay Mukhin   +4 more
doaj   +1 more source

Analysis of Bending Waves in Phononic Crystal Beams with Defects

open access: yesCrystals, 2018
Existing investigations on imperfect phononic crystal beams mainly concern periodic multi-span beams carrying either one or two channel waves with random or deterministic disorder in span-length.
Yongqiang Guo   +2 more
doaj   +1 more source

Photon Spectra of a Bragg Microresonator with Bigyrotropic Filling

open access: yesPhotonics, 2022
In this article, we have obtained the transmission spectra of a microresonator structure with Bragg mirrors, the working cavity of which is filled with a magnetically active finely layered ferrite-semiconductor structure with material parameters ...
Svetlana V. Eliseeva   +2 more
doaj   +1 more source

Infrared Transmission Spectra for Extrasolar Giant Planets [PDF]

open access: yesThe Astrophysical Journal, 2006
12 pages, 6 figures, ApJ ...
Tinetti, Giovanna   +5 more
openaire   +5 more sources

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