Sound wave techniques are experimental and analytical methods that generate, manipulate, and detect acoustic waves to probe, image, or modify materials and systems. In research, they encompass ultrasound imaging, acoustic microscopy, non-destructive evaluation via bulk and surface acoustic waves, and acoustic spectroscopy for characterizing elastic, viscoelastic, or porous media. These techniques exploit frequency-dependent propagation, reflection, refraction, scattering, attenuation, and mode conversion of longitudinal and shear waves. They are implemented using piezoelectric transducers or laser-based sources and detectors, and are used to measure mechanical properties, detect defects, monitor processes, and study wave–matter interactions across solid, liquid, and gaseous environments.
Ultrasound-based wireless power transfer is becoming a more attractive option to power implanted biomedical devices because it could overcome many of the limitations and challenges facing other wireless charging approaches. ...
Bio & Medicine
May 20, 2024
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80
Researchers at Pohang University of Science and Technology (POSTECH) have achieved a breakthrough in surpassing the limitations of traditional acoustic metalenses. They have successfully developed the first wide field-of-hearing ...
Optics & Photonics
May 14, 2024
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85
Researchers at the University of Rochester have used surface acoustic waves to overcome a significant obstacle in the quest to realize a quantum internet.
Optics & Photonics
May 13, 2024
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233
Researchers at the University of Copenhagen's Niels Bohr Institute have developed a new way to create quantum memory: A small drum can store data sent with light in its sonic vibrations, and then forward the data with new ...
Optics & Photonics
Apr 15, 2024
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585
The inside of underwater pipes and enclosed nuclear containers were inaccessible—until recently. Acoustics researchers in Penn State's College of Engineering have developed a way to convey energy and transmit communications ...
Condensed Matter
Feb 16, 2024
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158
ETH Zurich researchers have shown for the first time that microvehicles can be steered through blood vessels in the brains of mice using ultrasound. They hope that this will eventually lead to treatments capable of delivering ...
Bio & Medicine
Dec 7, 2023
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78
A new device created at the University of Notre Dame employs an innovative method for "listening in" on cells' conversations.
Bio & Medicine
Oct 23, 2023
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137
Physicians and researchers rely on biomedical imaging to examine the structure and function of living tissue. This enables disease diagnostics and experiments that reveal the mechanisms behind pathologies and ways to treat ...
Bio & Medicine
Sep 26, 2023
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129
The potential of an ultrafast form of transmission electron microscopy to measure sound waves in nanostructures has been demonstrated by three RIKEN physicists. This could help realize a high-resolution imaging method that ...
Nanophysics
Aug 1, 2023
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688
Ultrasound is a promising technique for treating cancer. Unlike laser light, used in photodynamic cancer therapy, ultrasound waves can reach deep into tissue—up to 12 cm—to treat deep tumors without damaging healthy cells. ...
Bio & Medicine
Jun 14, 2023
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