搜索结果: 1-15 共查到“工学 Diffraction”相关记录33条 . 查询时间(0.093 秒)
Phase Retrieval from Coded Diffraction Patterns
Phase Retrieval Coded Diffraction Patterns
2015/6/17
This paper considers the question of recovering the phase of an object from intensity-only measurements, a problem which naturally appears in X-ray crystallography and related disciplines. We study a ...
Routing of Deep-Subwavelength Optical Beams and Images without Refl ection and Diffraction Using Infi nitely Anisotropic Metamaterials
Deep-Subwavelength Optical Beams Images without nitely Anisotropic
2015/8/7
Many photonic structures, including waveguides, lenses, and photonic bandgap materials, benefi t greatly from the large index contrast provided by such media.
A low temperature X-ray single-crystal diffraction and polarised infra-red study of epidote
epidote low-temperature X-ray single-crystal diffraction polarised single crystal FTIR structurally incorporated water hydrogen bonding.
2014/5/20
The effects of low-temperature on the crystal structure of a natural epidote [Ca1.925 Fe0.745Al2.265Ti0.004Si3.037O12(OH), a=8.8924(7), b=5.6214(3), c=10.1547(6)Å and β= 115.396(8)° at room condi...
Bragg-Angle Diffraction in Slant Gratings Fabricated by Single-Beam Interference Lithography
Slant Grating Single-Beam Interference Lithography Bragg-Angle Diffraction
2013/1/30
A single-beam interference-lithography scheme is demonstrated for the fabrication of large-area slant gratings, which requires exposure of the photoresist thin film spin-coated on a glass plate with p...
A hard x-ray transmission microscope with 30 nm spatial resolution has been developed employing the third diffraction order of a zone plate objective. The microscope utilizes a capillary type condense...
Diffraction of slow neutrons by holographic SiO_2 nanoparticle-polymer composite gratings
Nanoparticles in polymers, Holographic optical elements, Holographic gratings, Neutron optics
2011/9/9
Diffraction experiments with holographic gratings recorded in SiO2 nanoparticle-polymer composites have been carried out with slow neutrons. The influence of parameters such as nanoparticle concentrat...
On the Stability of Reconstruction of Irregularly Sampled Diffraction Fields
monochromatic light three-dimensional display ill-poseness
2011/4/21
This paper addresses the problem of reconstruction of a monochromatic light field from data points, irregularly distributed within a volume of interest. Such setting is relevant for a wide range of th...
Crystallographic Characteristic of Intermetallic Compounds in Al-Si-Mg Casting Alloys by Using Electron Backscatter Diffraction
Al-Si-Mg alloys intermetallic compound electron backscatter diffraction (EBSD)
2011/8/3
The Al-Si-Mg alloy which can be strengthened by heat treatment is widely applied to the key components of aerospace and aeronautics. Iron-rich intermetallic compounds are well known to be strongly inf...
X-ray Diffraction of Cotton Treated with Neutralized Vegetable Oil-based Macromolecular Crosslinkers
Maleinized soybean oil (MSO) X-ray diffraction dimethyloldihydroxyethyleneurea (DMDHEU)
2010/9/20
Maleinized soybean oil (MSO) has been investigated as a flexible, macromolecular crosslinker for cotton fabrics. The ability of MSO to penetrate crystalline cellulose and crosslink aligned cellulose c...
X-ray diffraction studies of NiTi shape memory alloys
X-ray phase analysis Metallic alloys Heat treatment
2009/12/1
Purpose: The purpose of this paper is to present the results of the investigations of phase transitions of TiNiCo
and Ni-rich NiTi shape memory alloys designed for medical applications.
Design/meth...
Spectral Modification by Diffraction and Scattering
spectral changes diffraction and scattering roughness and incident
2011/4/21
Different effects induce spectral changes, for example, correlation of source fluctuations, propagation of light, random changes in optical properties of a medium, diffraction and scattering from obje...
Quantitative Phase Analysis of Polymorphs in MgO-Partially Stabilized-ZrO2 using X-Ray Diffraction
Zirconia X-Ray Di raction Quantitative Phase Analysis
2009/10/13
In this study, quantitative analysis of polymorphs in ZrO2-based ceramics using powder X-ray difiraction was carried out. For this purpose, three partially stabilized ZrO2 compositions having 8-10 mol...
Custom Hardware Processor to Compute a Figure of Merit for the Fit of X-Ray Diffraction Peaks
Custom Hardware Processor Compute a Figure of Merit for the Fit of X-Ray Diffraction Peaks
2009/9/4
A custom processor based on reconfigurable hardware technology is proposed in order to compute the figure of merit used to measure the quality of the fit of X-ray diffraction peaks. As the experimenta...
Application of Single and Dual Multilayer Optics for Powder X-Ray Diffraction
Single and Dual Multilayer Optics Powder X-Ray Diffraction
2009/9/4
The performance of parallel beam multilayer optics, including a parabolic multilayer Osmic MaxFlux GO-13N and a flat custom multilayer, was evaluated experimentally and compared to Bragg-Brentano and ...
Gaussian beam diffraction in inhomogeneous media of cylindrical symmetry
Gaussian beam diffraction paraxial complex geometrical optics inhomogeneous media of cylindrical symmetry
2011/5/9
The method of paraxial complex geometrical optics (PCGO) is presented, which describes
Gaussian beam (GB) diffraction in smoothly inhomogeneous media of cylindrical symmetry,
including fibers. PCGO ...