1. A closer look at one of the cylinders comprising a new non-metal metamaterial. The arrows depict how different aspects of an electromagnetic field interact with the cylinder.
2. Each cylinder of this new non-metal metamaterial is made of boron-doped silicon and precisely tailored to absorb electromagnetic waves.
Electrical engineers at Duke University have created the world’s first electromagnetic metamaterial made without any metal. The device’s ability to absorb electromagnetic energy without heating up has direct applications in imaging, sensing and lighting. Metamaterials are synthetic materials composed of many individual, engineered features that together produce properties not found in nature...
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