Slashdot is powered by your submissions, so send in your scoop

 



Forgot your password?
typodupeerror
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. ×
Hardware Hacking

Submission + - Accoustic "Superlens" Could Make Subs Invi (technologyreview.com)

Al writes: "Nicholas Fang and colleagues at the University of Illinois at Urbana-Champaign have created the first acoustic superlens, which could be used to create high-resolution ultrasound images, and perhaps ultimately make subs and ships invisible to sonar. Researchers have previously developed materials that bend light in ways that appear to violate the laws of physics, creating so-called optical superlenses. The first acoustic superlens consists of an aluminum array of narrow-necked resonant cavities filed with water--the dimensions of the cavities are tuned to interact with ultrasound waves. When ultrasound waves move through the array, the cavities resonate and the sound is refocused."
This discussion was created for logged-in users only, but now has been archived. No new comments can be posted.

Accoustic "Superlens" Could Make Subs Invi

Comments Filter:

Between infinite and short there is a big difference. -- G.H. Gonnet

Working...