单词	metamaterial
释义	metamaterial /ˈmɛtəməˌtɪərɪəl / noun Physics A synthetic composite material with a structure such that it exhibits properties not usually found in natural materials, especially a negative refractive index: the team began making these metamaterials and demonstrated several that scattered electromagnetic waves unlike any known materials... The team used two different wedge samples so that waves would be incident on the metamaterial at two different angles. Left-handed materials - such as this "metamaterial" for microwaves - are reported to bend light in the opposite direction from normal materials, a property that might lead to a "perfect" lens. But the negative-index metamaterials that have been demonstrated are far more dispersive than typical materials.
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