Researchers from North Carolina State University have developed a technique that allows ultrasound to penetrate bone or metal, using customized structures that offset the distortion usually caused by these so-called “aberrating layers.”
Using a new technique, “it’s as if the aberrating layer isn’t even there,” says researcher Yun Jing.
Image credit: Yun Jing.
The paper, “Anisotropic Complementary Acoustic Metamaterial for Canceling out Aberrating Layers,” is published online in the open access journal Physical Review X. The paper was co-authored by Drs. Jun Xu and Nicholas Fang at MIT. Jing acknowledges financial support from NC Space Grant via a New Investigator award. Xu and Fang acknowledge support from the Office of Naval Research under grant N00014-13-1-0631. DOI: 10.1103/PhysRevX.4.041033