Results 11 to 20 of about 2,260,423 (381)

Axial-Symmetric Diffraction Radiation Antenna with a Very Narrow Funnel-Shaped Directional Diagram

open access: yesApplied Sciences, 2021
The paper is focused on reliable modeling and analysis of axially symmetric radiators with a very narrow (throat) funnel-shaped radiation pattern. When such a diagram is formed, a wave analogue of Smith–Purcell coherent radiation is realized—the surface ...
Yuriy Sirenko   +5 more
doaj   +1 more source

Diffraction in grating optical filters with angular-selective light transmission [PDF]

open access: yesКомпьютерная оптика, 2020
The effect of diffraction on the directional light transmittance of grating optical filters designed for smart windows is studied. The filter has an angular selective light transmission due to two thin-film gratings formed by "non-transmissive ...
R.S. Zakirullin
doaj   +1 more source

Regimes of atomic diffraction: Raman versus Bragg diffraction in retroreflective geometries [PDF]

open access: yes, 2020
We provide a comprehensive study of atomic Raman and Bragg diffraction when coupling to a pair of counterpropagating light gratings (double diffraction) or to a single one (single diffraction) and discuss the transition from one case to the other in a ...
Abend, Sven   +6 more
core   +2 more sources

Growth of Sr1-xCaxRuO3 thin films by metalorganic aerosol deposition [PDF]

open access: yes, 2009
We report the growth of thin films of Sr1-xCaxRuO3 on SrTiO3 and MgO substrates by metalorganic aerosol deposition. The structure and microstructure is characterized by X-ray diffraction and room-temperature scanning tunnelling microscopy (STM ...
M Schneider   +4 more
core   +2 more sources

Incommensurate structures of the [CH3NH3][Co(COOH)3] compound

open access: yesIUCrJ, 2019
The present article is devoted to the characterization of the structural phase transitions of the [CH3NH3][Co(COOH)3] (1) perovskite-like metal–organic compound through variable-temperature single-crystal neutron diffraction.
Laura Canadillas-Delgado   +4 more
doaj   +1 more source

Three-dimensional Quantum Slit Diffraction and Diffraction in Time [PDF]

open access: yes, 2014
We study the quantum slit diffraction problem in three dimensions. In the treatment of diffraction of particles by a slit, it is usually assumed that the motion perpendicular to the slit is classical.
Beau, Mathieu, Dorlas, T. C.
core   +4 more sources

Gravitational diffraction radiation [PDF]

open access: yes, 2006
We show that if the visible universe is a membrane embedded in a higher-dimensional space, particles in uniform motion radiate gravitational waves because of spacetime lumpiness.
B. M. Bolotovskii   +10 more
core   +3 more sources

Characterisation and Study of Compounds by Single Crystal X-ray Diffraction

open access: yesCrystals, 2020
A few years after the discovery in 1895 of X-rays by Röntgen, the first successful experiment single crystal X-ray diffraction (SCXRD) was reported by Laue, Friedrich, and Knipping [...]
Josefina Perles
doaj   +1 more source

Phenomenology of diffractive DIS in the framework of fracture functions and determination of diffractive parton distribution functions [PDF]

open access: yesPhys. Rev. D 99, 054007 (2019), 2019
The goal of this study is to determine a set of diffractive parton distribution function (diffractive PDFs) from a QCD analysis of all available and up-to-date diffractive deep inelastic scattering (diffractive DIS) data sets from HERA $ep$ collider, including the most recent H1 and ZUES combined inclusive diffractive cross section measurements.
arxiv   +1 more source

Piecewise Linear Weighted Iterative Algorithm for Beam Alignment in Scanning Beam Interference Lithography

open access: yesPhotonic Sensors, 2019
To obtain a good interference fringe contrast and high fidelity, an automated beam iterative alignment is achieved in scanning beam interference lithography (SBIL).
Ying Song   +4 more
doaj   +1 more source

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