Noise generation in the solid Earth, oceans, and atmosphere, from non-linear interacting surface gravity waves in finite depth [PDF]
Oceanic pressure measurements, even in very deep water, and atmospheric pressure or seismic records, from anywhere on Earth, contain noise with dominant periods between 3 and 10 seconds, that is believed to be excited by ocean surface gravity waves. Most
Ardhuin, Fabrice, Herbers, Thomas H. C.
core +4 more sources
Acoustic wave propagation in the solar sub-photosphere with localised magnetic field concentration: effect of magnetic tension [PDF]
Aims: We analyse numerically the propagation and dispersion of acoustic waves in the solar-like sub-photosphere with localised non-uniform magnetic field concentrations, mimicking sunspots with various representative magnetic field configurations ...
Cally +31 more
core +2 more sources
Acoustofluidics 17: theory and applications of surface acoustic wave devices for particle manipulation [PDF]
In this paper, number 17 of the thematic tutorial series “Acoustofluidics – exploiting ultrasonic standing waves, forces and acoustic streaming in microfluidic systems for cell and particle manipulation” – we present the theory of surface acoustic waves (
Gedge, Michael, Hill, Martyn
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Bending and splitting of spoof surface acoustic waves through structured rigid surface
In this paper, we demonstrated that a 90°-bended imaging of spoof surface acoustic waves with subwavelength resolution of 0.316λ can be realized by a 45° prism-shaped surface phononic crystal (SPC), which is composed of borehole arrays with square ...
Sujun Xie +5 more
doaj +1 more source
Surface Acoustic Wave Induced Heat Knockdown of Caenorhabditis Elegans
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
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
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
Simultaneous Guidance of Surface Acoustic and Surface Optical Waves in Phoxonic Crystal Slabs
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
Large-scale numerical modeling of hydro-acoustic waves generated by tsunamigenic earthquakes [PDF]
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
Reverse Doppler effect in backward spin waves scattered on acoustic waves
We report on the observation of reverse Doppler effect in backward spin waves reflected off of surface acoustic waves. The spin waves are excited in a yttrium iron garnet (YIG) film. Simultaneously, acoustic waves are also generated.
A. A. Serga +12 more
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