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研究了一种包含左手材料的介电常数在一个单元内从0?ε到0ε连续变化的一维光子晶体,通过理论分析和数值计算,得到了该结构的色散关系.结果表明:即使在可见光区域该结构也存在一个很大的带隙.
A one-dimensional photonic crystal containing a left-handed material whose dielectric constant changes continuously from 0 ε to 0 ε in one unit is obtained. Theoretical analysis and numerical calculation show that the structure has a dispersion relation. The results show that even in the visible light There is also a large bandgap in this area of the structure.