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The magnetic component of light interacts more with metamaterials than naturally occurring materials, why?

It would also be nice to explain this in terms of inductance, permeability, and permittivity within SRR metamaterialsI‘m currently an undergraduate participating in research for the summer. I‘ve only taken general physics 1 and 2, but please dont hesitate to give details that might be too advanced for me to understand. I plan on reading more about any details that I don‘t understand or have not learned yet.Thank you very much

Answer:

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First of all you must understand that Metamaterials are artificial materials engineered to have properties that may not be found in nature. They are assemblies of multiple individual elements fashioned from conventional microscopic materials such as metals or plastics, but the materials are usually arranged in periodic patterns. Metamaterials gain their properties not from their composition, but from their exactingly-designed structures. Their precise shape, geometry, size, orientation and arrangement can affect the waves of light or sound in an unconventional manner, creating material properties which are unachievable with conventional materials. In a naturally occurring, (conventional) material, the response to electric and magnetic fields, and hence to light, is determined by the atoms. As metamaterials are an artificially engineered structure. This means the material has an artificial cell structure and these periodic cells, or meta-atoms, take the place of atoms in the material. Additionally, each periodic cell is designed with specific parameters and values by which it interacts with the radiated field at optical frequencies. At the same time, however, metamaterials in general, which includes photonic metamaterials, are described as homogeneous materials, or in other words, utilizing an effective medium model. Furthermore, demonstrating artificial magnetism at high frequencies, resulting in strong magnetic coupling, is contrasted with the usual or normal weak magnetic coupling of ordinary materials. This can then be applied to achieving negative index of refraction in the optical range, and developing approaches that show potential for application to optical cloaking. In addition, photonic metamaterials are an emergent tool in transformation optics.

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