Yvonne Carts-Powell

Newly developed cloak hides underwater objects from sonar

In Science on January 7, 2011 at 2:28 am

Photo by L. Brian Stauffer


Now you hear it, now you don’t. I’ve written a lot (both in The Science of Heroes and in magazines and news sites and on this blog) about using metamaterials to make “invisibility cloaks” at radio and light wavelengths. But this is the first mention I’ve seen of the technology being applied to sound.

The researchers at the University of Illinois appear to be doing things right: they’ve got plans for expanding the range of wavelengths, and are talking about using it to improve medical imaging (presumably using ultrasound), as well as the inevitable military applications.

via Newly developed cloak hides underwater objects from sonar.

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