Metamaterials, a.k.a artificially engineered materials, are designed to have the optical properties that are not displayed by any naturally occurring materials. They usually have periodic structures and sizes much smaller than the required wavelengths. Surprisingly, the optical properties of metamaterials are completely independent of the composite elements such as metals and silicon compounds: metamaterials can generate different kinds of optical phenomena like cloaking and focusing by varying their geometry, shape, size, and et cetera. There are a lot of potential innovations, such as in seismic protection and in sound filtering, that can be achieved by metamaterials. For our project, we focus on the focusing properties of the metamaterials.
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