Acoustic lenses are employed in a variety of applications, from biomedical imaging and surgery to defense systems and damage detection in materials. Focused acoustic signals, for example, enable ...

Taking inspiration from a popular executive toy ("Newton's cradle"), researchers have built a device -- called a nonlinear acoustic lens -- that produces highly focused, high-amplitude acoustic ...

Sound waves are used in many imaging applications, but they're often underpowered and hard to focus. But focus them into "sound bullets" and all sorts of interesting things happen. A paper published ...

PASADENA, Calif.—Taking inspiration from a popular executive toy ("Newton's cradle"), researchers at the California Institute of Technology (Caltech) have built a device—called a nonlinear acoustic ...

TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of online ...