【摘要】 本文对二维光子晶体的电磁波理论及周期介质中的 Bloch波解做了详细的推导 ,给出了光子晶体中的禁带存在的理论依据 ,同时以三角格子晶格的两维光子晶体为例 ,验证了空气圆柱在电介质中的排列存在 E偏振和 H偏振的光子带隙重叠区 ,称为绝对光子带隙。最后着重阐述了二维光子晶体在实际应用中的最新成果更多还原

【Abstract】 This article gives a complete deduction of the electromagnetic wave theory of photonic crystal of two dimensions and Bloch wave solution in stratified periodic dielectric,offers the academic foundation of the existence of stop band,and taking two dimensional photonic crystal of triangular lattice as an example proves that the crystal constructed from air circular holes in dielectric matrix can generate a common band gap,which is called absolute photonic band gap,for both orthogonal polarization E and H.At last,the new application of two-dimensional photonic crystal in practice is discussed in detail.\;更多还原