A lattice vacancy is a simple example of an imperfection. 點陣空位就是不完美性的一個簡單例子。
These results would provide theoretical instruction for designing optical integrated devices using photonic crystal with a rhombus lattice. 這些研究結果對設計菱形晶格結構的光子晶體光學集成器件具有重要的指導意義。