能形成低对称性的双模结构，有利于光子晶体带隙结构性能的提高，获得大面积均匀的光子晶体结构。
The optical element forms dual mode structure in low symmetry. The invention raises structural performance band gap of photon crystal, and obtains even structure of photon crystal in large area.
能形成低对称性的双模结构，有利于光子晶体带隙结构性能的提高，获得大面积均匀的光子晶体结构。
The optical element forms dual mode structure in low symmetry. The invention raises structural performance band gap of photon crystal, and obtains even structure of photon crystal in large area.
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