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Saturday, June 02, 2012

First-ever pentamode metamaterial for acoustic cloaks

pentamode metamaterialResearchers at the Karlsruhe Institute of Technology in Germany have created a prototype of a pentamode metamaterial, a class of materials with unique properties that allows them to control and steer mechanical waves.

The materials were proposed theoretically in 1995 but haven't been realized practically until now.

The new material could be used to design new types of loudspeakers and more efficient microphones. It could also lead to acoustic cloaks that would make an object invisible to sound by directing sound waves around it.

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