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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The metal photonic band gap structure has potentialities in the areas of high-energy accelerators, microwave vacuum electron devices, and terahertz radiation sources etc.

金属光子带隙结构在高能加速器、微波真空电子器件和太赫兹波源等方面具有重要的应用前景。

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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