Results 41 to 50 of about 41,921 (296)

Holographic Writing of Forked Diffraction Gratings on the Surface of a Chalcogenide Glass Semiconductor

Photonics, 2023
We consider the formation of forked diffraction gratings on the surface of a multilayer structure based on chalcogenide glass semiconductors As2S3 and a-Se is.
Nikolay A. Ivliev, Svetlana N. Khonina, Vladimir V. Podlipnov, Sergey V. Karpeev   +3 more
doaj   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Reconstructing Detailed Line Profiles of Lamellar Gratings from GISAXS Patterns with a Maxwell Solver [PDF]

, 2017
Laterally periodic nanostructures were investigated with grazing incidence small angle X-ray scattering (GISAXS) by using the diffraction patterns to reconstruct the surface shape.
Haase, Anton, Herrero, Analia Fernandez, Krumrey, Michael, Laubis, Christian, Pflüger, Mika, Probst, Jürgen, Scholze, Frank, Soltwisch, Victor   +7 more
core   +3 more sources

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

Advanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser, Felix Drechsler, Nora Brachhold, Florian Kerber, Christos G. Aneziris   +4 more
wiley   +1 more source

Angular alignment and fidelity of neutron phase-gratings for improved interferometer fringe visibility

AIP Advances, 2019
The recent development of phase-grating moiré neutron interferometry promises a wide range of impactful experiments from dark-field imaging of material microstructure to precise measurements of fundamental constants.
B. Heacock, D. Sarenac, D. G. Cory, M. G. Huber, D. S. Hussey, C. Kapahi, H. Miao, H. Wen, D. A. Pushin   +8 more
doaj   +1 more source

Characterization of a new photorefractive material: Kl-yLyT1-xNx [PDF]

, 1992
We report the growth and characterization of a new photorefractive material, potassium lithium tantalate niobate (KLTN). A KLTN crystal doped with copper is demonstrated to yield high diffraction efficiency of photorefractive gratings in the paraelectric
Agranat, Aharon, Hofmeister, Rudy, Yariv, Amnon   +2 more
core  

Diffraction of complex molecules by structures made of light [PDF]

, 2001
We demonstrate that structures made of light can be used to coherently control the motion of complex molecules. In particular, we show diffraction of the fullerenes C60 and C70 at a thin grating based on a standing light wave.
Anton Zeilinger, Björn Brezger, C. Keller, C. S. Adams, D. M. Giltner, D. W. Keith, E. M. Rasel, E. Sohmen, G. Timp, H. Gratz, J. U. Andersen, L. Deng, M. Arndt, Markus Arndt, O. Nairz, Olaf Nairz, P. E. Moskowitz, P. J. Martin, R. Abfalterer, R. E. Grisenti, S. Kunze, Th. Schulze   +21 more
core   +2 more sources

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

A modified method of variable separation for the problem of TE wave diffraction on a diffraction grating with two-layer lines in the period

Учёные записки Казанского университета: Серия Физико-математические науки
The diffraction of an electromagnetic TE wave on multilayer diffraction gratings with several two-layer lines in the period was investigated. Such optical structures are employed in spectral beam combining.
Yu. G. Smirnov, V. Yu. Martynova
doaj   +1 more source