Results 41 to 50 of about 334,848 (323)

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

THE ANALYTICAL-NUMERICAL METHOD OF SOLVING THE PROBLEMS OF ELECTROMAGNETIC WAVES DIFFRACTION BY CIRCULAR RADIALLY INHOMOGENEOUS MAGNETODIELECTRIC CYLINDERS [PDF]

Радиофизика и электроника, 2016
We suggest an analytical-numerical method for determining the diffraction characteristics of the plane linearly polarized electromagnetic wave scattered by a circular inhomogeneous isotropic magnetodielectric cylinder, which material parameters depend on
A. V. Brovenko, P. N. Melezhik, S. B. Panin, A. Ye. Poyedinchuk   +3 more
doaj   +1 more source

Total absorption of an electromagnetic wave by an overdense plasma

, 2005
We show both theoretically and experimentally that an electromagnetic wave can be totally absorbed by an overdense plasma when a subwavelength diffraction grating is placed in front of the plasma surface.
D. Bohm, Joshua Felsteiner, V. G. Veselago, Yakov Z. Slutsker, Yury P. Bliokh   +4 more
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

ON A METHOD FOR SOLVING THE PROBLEM OF ELECTROMAGNETIC WAVE DIFFRACTION ON A DIFFRACTION GRATING

Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2020
Background. The aim of the study is to develop a numerical method for solving the problem of diffraction of electromagnetic waves on a two-dimensional periodic diffraction grating. Materials and methods. A modified method of separation of variables in
E. V. Gusarova, Yu. G. Smirnov, A. A. Tsupak   +2 more
doaj   +1 more source

Quelques aspects de la propagation des ondes radioélectriques

Territoire en Mouvement, 2012
This paper deals with the scattering of electromagnetic wave in space, especially for radio frequency waves used for broadcasting, TV and telecommunication devices.
Bernard Démoulin
doaj   +1 more source

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

Advanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh, Shashank Deepak Prabhu, Jannik Huber, Lioba Fischer, Gerhard Wolf, Nico Hempel, Peter Mayr   +6 more
wiley   +1 more source

ANALYSIS OF THE DIFFRACTION EFFICIENCY OF ONE-DIMENSIONAL BINARY DIFFRACTION GRATING BY THE PLANE WAVE EXPANSION METHOD (THE TE-POLARIZATION CASE)

Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2020
Background. The aim of this work is to study the diffraction of an electromagnetic TE-wave by one-dimensional cylindrical diffraction gratings. Material and methods.
A. A. Tsupak
doaj   +1 more source

Reconciliation of generalized refraction with diffraction theory

, 2012
When an electromagnetic wave is obliquely incident on the interface between two homogeneous media with different refractive indices, the requirement of phase continuity across the interface generally leads to a shift in the trajectory of the wave. When a
David R. Smith, Lalanne, Magnusson, Ni, Pendry, Smith, Smith, Stéphane Larouche, Tsai, Yu   +9 more
core   +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