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.
Ōtākou Whakaihu Waka researchers have hit the right note to cut down the time it takes to brew beer without altering its flavor. They have found playing audible sound (white noise) while making beer can reduce the fermentation ...
Cell & Microbiology
Aug 18, 2025
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100
Biomedical engineers at Duke University have developed a method to more precisely heat up gold nanoparticles to target and destroy cancerous tumors. Using imaging methods that combine light and sound to peer deeper into tissue, ...
Bio & Medicine
Aug 18, 2025
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36
Using new techniques, Yale researchers have demonstrated the ability to use lasers to cool quantized vibrations of sound within massive objects to their quantum ground state, the lowest energy allowable by quantum mechanics. ...
Optics & Photonics
Aug 15, 2025
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187
Researchers have created a microphone that listens with light instead of sound. Unlike traditional microphones, this visual microphone captures tiny vibrations on the surfaces of objects caused by sound waves and turns them ...
Optics & Photonics
Jul 31, 2025
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131
In a new study, researchers show, for the first time, that photoacoustic microscopy can image stents through skin, potentially offering a safer, easier way to monitor these life-saving devices. Each year, around 2 million ...
Optics & Photonics
Jul 26, 2025
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63
A new AI tool that picks out bird and amphibian sounds in audio recordings could improve how ecologists monitor and study Canada's wildlife.
Ecology
Jun 30, 2025
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24
Sensorineural hearing loss (SNHL) is the most prevalent form of permanent hearing loss, affecting over 6% of the global population, according to the World Health Organization. It results from damage to sensory hair cells ...
Bio & Medicine
Jun 24, 2025
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47
A new tool that assesses the level of danger posed by tsunamis in real-time has been made operational on a global scale.
Earth Sciences
Jun 18, 2025
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54
The wildest trampoline in the world swings sideways and "around corners." Yet, no one can jump on it, because it's not even a millimeter tall. Physicists from the University of Konstanz, the University of Copenhagen, and ...
Nanophysics
Jun 5, 2025
0
35
More than 400 underwater sites in the United States are potentially contaminated with unexploded ordnance (UXO)—weapons that did not explode upon deployment, which continues to pose a safety concern.
Environment
May 19, 2025
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