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History

The history of metamaterial could be dated back to the World War II, In 1968, Veselago first proposed the concept of “negative refractive index”. A flat material with such a negative refractive index property can act like a lens, causing parallel incident rays to converge at a point.
With the in-depth research on optical metamaterials, metamaterials have also been extended to the field of excitation of acoustic and other elements, such as acoustic wave metamaterials, mechanical metamaterials, and thermal metamaterials. material.[5] Combining traditional condensed matter material science with various new micro and nano-processing technologies, and targeting the next generation of information and new energy technologies, metamaterials are becoming the frontier of new disciplines in today's micro-structured materials science. \(\)