Metamaterials Provide Novel EM Capabilities (.PDF Download)

Metamaterials are engineered materials that are capable of characteristics not found in naturally occurring materials. They can be fabricated with negative refractivity, which causes an electromagnetic (EM) wave to reflect in a direction opposite of what might be expected. Since metamaterials can be structured to affect sound and light waves as well, a great deal of experimentation has been performed with these materials to control audio sound levels and even to control the amount of light

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