So, the study on photonic band gap structure is an important part of basic research on photonic crystals.

因此，对于光子晶体的带隙及其光学传输特性的研究是对光子晶体进行基础性研究的重要内容。

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Photonic band gap structure of photonic crystals indicates its primary Property , which is the base of design of application.

光子晶体的带隙结构是光子晶体的重要特性之一，也是光子晶体应用开发的基础。

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First, we propose and analyze a novel 3-dimensional photonic-crystal which is capable of further exploring the design flexibility of any band-gap structure.

论文首先提出了一种具有更高灵活性的三维光子晶体结构，并分析了其能带结构和缺陷模特性。

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"To close this important gap in our regulatory structure, legislative action is needed that would subject all systemically-important financial institutions to the same framework for consolidated supervision that currently applies to bank holding companies."

VOA: standard.2009.10.01

But, by drilling a series of evenly spaced holes into the wire, Dr Lim has created a periodic structure with a band gap that blocks such light.

ECONOMIST: New-age crystals