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A rf-SQUID based metamaterial

An array of circular structures becomes transparent to radio waves.

Illustration of a new self-cloaking metamaterial developed by University of Maryland physicists. An array of miniature devices (circular structures) called rf-SQUIDs can become transparent to microwave radiation with the flip of a switch. At left, the material is in transparent mode and allows microwaves to travel freely. At right, the material is in opaque mode and prevents microwaves from traversing the barrier.

December 2015 • UMD • • Tagged: Illustration