1. In this thesis, the plane wave expansion method is used to get the equifrequency surface.The anomalous refractive properties of photonic crystal are analyzed by using the equifrequency surface.
   中文摘要光子晶体是由周期性结构所组成的结构，假若经由适度的设计则具备改变光波传递的效果。In this thesis, the plane wave expansion method is used to get the equifrequency surface.The anomalous refractive properties of photonic crystal are analyzed by using the equifrequency surface.
   中文摘要光子晶体是由周期性结构所组成的结构，假若经由适度的设计则具备改变光波传递的效果。

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