Results 41 to 50 of about 5,705,389 (145)

Localization and shaping of surface acoustic waves using PDMS posts: application for particle filtering and washing† [PDF]

open access: yesRSC Advances, 2014
We introduce a technique to control the position and effective area of the surface acoustic wave (SAW) acting on a fluid in a PDMS microchannel. The acoustic force can be localized at specific areas of the channels using a structured, ultra-thin PDMS ...
Richard W. Rambach   +2 more
doaj   +1 more source

Plasmonic lattice excitation of surface acoustic waves in silicon photonic circuits

open access: yesAPL Photonics
Surface acoustic waves enable long group delays and narrowband analog filtering on-chip, which are difficult to obtain with fast-moving electromagnetic waves.
Leroy Dokhanian   +6 more
doaj   +1 more source

Effects of surface ship motion attitude on acoustic scattering characteristics

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectivesIn order to further improve the accuracy of torpedoes in the acoustic homing identification of complex surface targets, a simulation study on the acoustic scattering characteristics of surface ship motion attitudes in random waves is carried ...
Yan LIU   +4 more
doaj   +1 more source

The multi-physics metawedge: graded arrays on fluid-loaded elastic plates and the mechanical analogues of rainbow trapping and mode conversion

open access: yesNew Journal of Physics, 2018
We consider the propagation and mode conversion of flexural-acoustic waves along a fluid-loaded graded array of elastic resonators, forming a metasurface.
E A Skelton   +3 more
doaj   +1 more source

Determination of structure ordering parameters in subsurface layers of condensed state materials by AMD-methods [PDF]

open access: yesMATEC Web of Conferences, 2020
The results of studies of solid-state materials using AMD-methods are presented. It is shown that, regardless of the type of structure of the studied materials and their nature, acoustic waves provide subsurface images.
Kustov Alexander   +3 more
doaj   +1 more source

Topological Surface States in a Gyroid Acoustic Crystal

open access: yesAdvanced Science, 2023
The acoustic properties of an acoustic crystal consisting of acoustic channels designed according to the gyroid minimal surface embedded in a 3D rigid material are investigated.
Yuning Guo   +2 more
doaj   +1 more source

Multilayer-graphene-based amplifier of surface acoustic waves

open access: yesAIP Advances, 2015
The amplification of surface acoustic waves (SAWs) by a multilayer graphene (MLG)-based amplifier is studied. The conductivity of massless carriers (electrons or holes) in graphene in an external drift electric field is calculated using Boltzmann’s ...
Stanislav O. Yurchenko   +2 more
doaj   +1 more source

Piezoelectric Film Waveguides for Surface Acoustic Waves [PDF]

open access: yesЖурнал нано- та електронної фізики, 2016
The paper presents results of mathematical modeling of piezoelectric film waveguide structures for surface acoustic waves (SAW). Piezoelectric ZnO film is supposed to be placed on a fused quartz substrate.
M.F. Zhovnir
doaj   +1 more source

X-ray diffraction by surface acoustic waves

open access: yes, 1994
X-ray diffraction on the YZ cut of a LiNbO3 crystal modulated by surface acoustic waves was investigated under the total external reflection conditions.
M. BRUNEL   +5 more
core   +1 more source

Influence of Homo- and Hetero-Junctions on the Propagation Characteristics of Radially Propagated Cylindrical Surface Acoustic Waves in a Piezoelectric Semiconductor Semi-Infinite Medium

open access: yesMathematics
This paper theoretically investigates the influence of homo- and hetero-junctions on the propagation characteristics of radially propagated cylindrical surface acoustic waves in a piezoelectric semiconductor semi-infinite medium.
Xiao Guo   +4 more
doaj   +1 more source

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