Results 21 to 30 of about 30,372 (259)

Chiral Magnetoacoustics

open access: yesFrontiers in Physics, 2022
Nonreciprocal microwave devices are key components of communication platforms. Nonreciprocity can arise in chiral systems, where chirality refers to a fixed handedness that is preserved under time reversal.
Matthias Küß   +2 more
doaj   +1 more source

Liquid-assisted tunable metasurface for simultaneous manipulation of surface elastic and acoustic waves

open access: yesAIP Advances, 2018
A tunable and multi-functional one-dimensional metasurface, which is formed by engraving periodic semi-ellipse grooves on the surface of an aluminum half-space, is proposed in this paper. One characteristic of the metasurface is the manipulation of multi-
Si-Min Yuan   +3 more
doaj   +1 more source

Surface Acoustic Wave Induced Heat Knockdown of Caenorhabditis Elegans

open access: yesHittite Journal of Science and Engineering, 2021
Model organisms such as Caenorhabditis elegans are commonly used in discovering theunderlying mechanisms of human diseases. The field of microfluidics enables a plethora of tools for better studying these organisms.
Adem Özçelik
doaj   +1 more source

Electrical control of surface acoustic waves

open access: yesNature Electronics, 2022
Acoustic waves at microwave frequencies have been widely used in wireless communication and recently emerged as versatile information carriers in quantum applications. However, most acoustic devices are passive components, and dynamic control of acoustic waves in a low-loss and scalable manner remains an outstanding challenge, which hinders the ...
Linbo Shao   +9 more
openaire   +3 more sources

Simultaneous Guidance of Surface Acoustic and Surface Optical Waves in Phoxonic Crystal Slabs

open access: yesCrystals, 2017
Phoxonic crystals, which exhibit simultaneous phononic and photonic bandgaps, are promising artificial materials for optomechanical and acousto-optical devices.
Tian-Xue Ma   +2 more
doaj   +1 more source

Bandgap tunability of surface acoustic waves in a two-dimensional magneto-electro-elastic phononic crystal

open access: yesAIP Advances, 2021
The propagation of surface acoustic waves in two types of tunable magneto-electro-elastic phononic crystal structures is investigated, for which Terfenol-D rods are vertically deposited on the piezoelectric substrate or embedded in the piezoelectric ...
Jianying Hu   +4 more
doaj   +1 more source

Large-scale numerical modeling of hydro-acoustic waves generated by tsunamigenic earthquakes [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2015
Tsunamigenic fast movements of the seabed generate pressure waves in weakly compressible seawater, namely hydro-acoustic waves, which travel at the sound celerity in water (about 1500 m s−1).
C. Cecioni   +3 more
doaj   +1 more source

PASSIV WIRELESS CURENT SENSOR FOR THREE-PHASE CIRCUTS

open access: yesВестник Северо-Кавказского федерального университета, 2022
Studies on passive wireless current sensors for three-phase circuits based on delay lines on surface acoustic waves are presented. The design of a passive wireless sensor on surface acoustic waves is proposed, in which there is a strong dependence of the
V. Kislitsyn   +4 more
doaj  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Broadband reflected wavefronts manipulation using structured phase gradient metasurfaces

open access: yesAIP Advances, 2016
Acoustic metasurface (AMS) is a good candidate to manipulate acoustic waves due to special acoustic performs that cannot be realized by traditional materials. In this paper, we design the AMS by using circular-holed cubic arrays.
Xiao-Peng Wang   +4 more
doaj   +1 more source

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