Results 31 to 40 of about 322,207 (289)

Using the Partial Wave Method for Wave Structure Calculation and the Conceptual Interpretation of Elastodynamic Guided Waves

Applied Sciences, 2018
The partial-wave method takes advantage of the Christoffel equation’s generality to represent waves within a waveguide. More specifically, the partial-wave method is well known for its usefulness when calculating dispersion curves for multilayered ...
Christopher Hakoda, Cliff J. Lissenden
doaj   +1 more source

Similarity rules for nonlinear Kerr-like slab optical waveguides [PDF]

, 1992
It is shown that the stationary waveguiding properties of TE guided waves in a slab optical waveguide with a nonlinear Kerr-like bounding medium can be described in a compact way by means of the usual normalized effective modal index (b) and a set of ...
Pérez Torres, Juan, Torner Sabata, Lluís   +1 more
core   +2 more sources

Characterization of the Use of Low Frequency Ultrasonic Guided Waves to Detect Fouling Deposition in Pipelines

Sensors, 2018
The accumulation of fouling within a structure is a well-known and costly problem across many industries. The build-up is dependent on the environmental conditions surrounding the fouled structure.
Habiba Lais, Premesh S. Lowe, Tat-Hean Gan, Luiz C. Wrobel, Jamil Kanfoud   +4 more
doaj   +1 more source

Comment on ``Enhanced transmission of light through a gold film due to excitation of standing surface-plasmon Bloch waves"

, 2007
The purpose of this comment is first to correct a misapprehension of the role played by composite wave diffraction on surface-wave generation at subwavelength structures and second to point out that periodic Bloch structures are unnecessary for the ...
Weiner, J.
core   +3 more sources

Nonlinear guided waves and symmetry breaking in left-handed waveguides

, 2003
We analyze nonlinear guided waves in a planar waveguide made of a left-handed material surrounded by a Kerr-like nonlinear dielectric. We predict that such a waveguide can support fast and slow symmetric and antisymmetric nonlinear modes.
Akhmediev, Bayindir, Belyantsev, Garcia, Garcia, Ilya V. Shadrivov, Kosaka, Leskova, Li, Notomi, Pendry, Pendry, Podolskiy, Ruppin, Shadrivov, Shadrivov, Shadrivov, Smith, Smith, Veselago   +19 more
core   +1 more source

Guided-jet waves

Journal of Fluid Mechanics
Guided-jet waves have been shown to close resonance loops in a myriad of problems such as screech and impingement tones in jets. These discrete, upstream-travelling waves have long been identified in linear-stability models of jet flows, but in this work they are instead considered in the context of an acoustic-scattering problem.
Petrônio A.S. Nogueira, André V.G. Cavalieri, Eduardo Martini, Aaron Towne, Peter Jordan, Daniel Edgington-Mitchell   +5 more
openaire   +2 more sources

Open Guided Waves: online platform for ultrasonic guided wave measurements [PDF]

Structural Health Monitoring, 2018
Ultrasonic guided waves have been used successfully in structural health monitoring systems to detect damage in isotropic and composite materials with simple and complex geometry. A limitation of current research is given by a lack of freely available benchmark measurements to comparatively evaluate existing methods.
Jochen Moll, Jens Kathol, Claus-Peter Fritzen, Maria Moix-Bonet, Marcel Rennoch, Michael Koerdt, Axel S Herrmann, Markus GR Sause, Martin Bach   +8 more
openaire   +4 more sources

Negative reflection of elastic guided waves in chaotic and random scattering media [PDF]

, 2019
The propagation of waves in complex media can be harnessed either by taming the incident wave-field impinging on the medium or by forcing waves along desired paths through its careful design.
Aubry, Alexandre, Gérardin, Benoît, Laurent, Jérôme, Legrand, François, Prada, Claire   +4 more
core   +7 more sources

Nonlinear guided waves and spatial solitons in a periodic layered medium

, 2001
We overview the properties of nonlinear guided waves and (bright and dark) spatial optical solitons in a periodic medium created by a sequence of linear and nonlinear layers.
Aceves, Andrey A. Sukhorukov, Barra, Bronski, Bronski, Chen, Cho, Christodoulides, Christodoulides, Darmanyan, de Sterke, Eisenberg, Eisenberg, Grebel, Kapitula, Kevrekidis, Kivshar, Kivshar, Kivshar, Kivshar, Kivshar, Kivshar, Krolikowski, Lan, Lidorikis, Lidorikis, Mingaleev, Morandotti, Morandotti, Nabiev, Peschel, Sukhorukov, Tocci, Trombettoni, Wachter, Wu, Yeh, Yuri S. Kivshar   +37 more
core   +2 more sources

Frequency-sweep examination for wave mode identification in multimodal ultrasonic guided wave signal [PDF]

, 2014
This article has been made available through the Brunel Open Access Publishing Fund.Ultrasonic guided waves can be used to assess and monitor long elements of a structure from a single position.
Balachandran, W, Boulgouris, NV, Fateri, S, Gan, T-H, Wilkinson, A   +4 more
core   +1 more source