Acoustic Bottle (IMAGE)

DOE/Lawrence Berkeley National Laboratory

Acoustic Bottle

Caption

After being emitted from a planar-phased source, sound energy forms a 3D acoustic bottle of high-pressure walls and a null region in the middle. Pressure field at bottom shows self-bending ability of the bottle beam to circumvent 3D obstacles. Dashed arrows indicate wave front direction.

Credit

Courtesy of Xiang Zhang group

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