what is artificial material????
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In the field of electromagnetic and/or optical waves, the concept of “artificial material” covers any fabricated device, be it metallic, dielectric or metal-dielectric, enabling a varyingly complex control of wave propagation in a chosen wavelength range. A common point to all approaches is that the structural scale of the building blocks of a new material is proportional to its operating wavelength. From this first principle stem two relatively distinct research paths, “photonic crystals” (or photonic/electromagnetic materials with a band gap) and “metamaterials”.
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the field of electromagnetic and/or optical waves, the concept of “artificial material” covers any fabricated device, be it metallic, dielectric or metal-dielectric, enabling a varyingly complex control of wave propagation in a chosen wavelength range. A common point to all approaches is that the structural scale of the building blocks of a new material is proportional to its operating wavelength. From this first principle stem two relatively distinct research paths, “photonic crystals” (or photonic/electromagnetic materials with a band gap) and “metamaterials”
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