Results 31 to 40 of about 5,729,346 (195)
Diffraction Losses in a Stack of Diamond X-Ray Lenses
PhotonicsCompound refractive lenses, crafted from single-crystal materials like diamond and silicon, are increasingly favored, particularly in cutting-edge facilities, such as free electron lasers and fourth-generation synchrotrons.
Nataliya Klimova, Anatoly Snigirev
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Diffraction of electromagnetic waves on the resonance graphene metasurfaces [PDF]
ITM Web of Conferences, 2019 By using three independent numerical approaches to solve the 3D diffraction boundary problems the reflection, transmittance coefficients and losses of metasurfaces of graphene strip elements, depending on the frequency and values of the chemical ...
Lerer Alexander M., Makeeva Galina S.
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Barium Titanate/Gadolinium Ferrite: A New Material Composite to Store Energy
Nanomaterials, 2023 This work investigates the dielectric properties of barium titanate/gadolinium ferrite ceramic composites, with different concentrations of each material.
Clara Baivier +4 more
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Negative diffraction by a periodically modulated loss
2013 15th International Conference on Transparent Optical Networks (ICTON), 2013 We show how a periodic modulation of loss on the wavelength scale provides negative diffraction propagation. In particular, we consider a 2D square arrangement of lossy cylinders embedded in air, with no index contrast. The phase-shifts accumulated in propagation trough such a structure, with flat-flat interfaces, are then compensated by normal ...
Botey Cumella, Muriel +5 more
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Occurrence and speciation of copper in slags obtained during the pyrometallurgical processing of chalcopyrite concentrates at the Huelva smelter (Spain) [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2012 Slags involved in smelting-converting-refining operations to produce blister copper at the Atlantic Copper smelter, in Huelva (Spain), have been investigated by quantitative electron microprobe analysis, X-ray diffraction and digital imaging ...
Fernández-Caliani J.C. +3 more
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Electronic Materials, 2022 This study aims to discuss the combined theoretical and experimental results of elastic properties of tungsten trioxide films supported on Quartz (YX)/45°/10° resonator to form surface acoustic wave (SAW) devices.
Madjid Arab +4 more
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Dust Storm and Diffraction Modelling for 5G Spectrum Wireless Fixed Links in Arid Regions
IEEE Access, 2019 The arid climate regions, such as in Riyadh city (Saudi Arabia), are characterized by strong dust storms which can deteriorate the performance of wireless systems.
Zaid Ahmed Shamsan
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Microwave dielectric properties of BiFeO3 thin film prepared by aqueous chemical solution deposition method [PDF]
Processing and Application of Ceramics, 2009 We report high frequency dielectric properties of multiferroic BiFeO3 (BFO) thin film deposited by means of aqueous chemical solution deposition on platinized silicon substrate.
Ričardas Sobiestianskas +4 more
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Analysis of the fresnel breakdown and diffraction losses across a hilly terrain region
Discover ElectronicsA propagation loss analysis across a hilly terrain region is presented, with a focus on analyzing and modeling signal breakdown distances and signal losses in both line-of-sight (LOS) and non-line-of-sight (NLOS) scenarios.
Thaisa Jawhly
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Physical Review Special Topics. Accelerators and Beams, 2009 A phenomenon of “spectral gaps” is observed in far-infrared free-electron lasers using partial waveguiding: the laser power falls down to zero at some particular wavelengths, whatever the beam adjustments are.
R. Prazeres, F. Glotin, J.-M. Ortega
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