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首页> 外文期刊>Science and Technology of Advanced Materials >Electromagnetic wave control of ceramic/resin photonic crystals with diamond structure
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Electromagnetic wave control of ceramic/resin photonic crystals with diamond structure

机译：具有金刚石结构的陶瓷/树脂光子晶体的电磁波控制

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Millimeter-order photonic crystals with the periodic arrangement of the dielectric constant were fabricated by infiltrating the mixed slurry of ceramics and polyester into the epoxy molds with an inverse form of a diamond structure. The epoxy molds are designed and processed by using a CAD/CAM process of stereolithography. The photonic crystals were prepared to have the diamond structure of the ceramic/polyester composite lattice, which is embedded in the epoxy matrix. The ceramic powders mixed with polyester are TiO_2, SrTiO_3, and BaTiO_3 with high dielectric constant. It is possible to control more freely and widely the dielectric constant of the photonic crystals by this method. These ceramic/resin photonic crystals formed the complete photonic band gaps in the microwave band of 7-11 GHz, which can totally reflect the electromagnetic wave for all crystal directions. Attenuation profiles of the transmission amplitude in the band gaps were controlled with the dielectric constant of the composite lattice. The obtained results fairly agreed with the theoretical simulation of the electromagnetic wave propagation through photonic crystals.
机译：通过将陶瓷和聚酯的混合浆料浸入具有钻石结构反型形式的环氧模具中，可以制造出具有介电常数周期性排列的毫米级光子晶体。环氧树脂模具是通过使用CAD / CAM立体光刻工艺来设计和加工的。制备光子晶体，使其具有嵌入在环氧基质中的陶瓷/聚酯复合晶格的金刚石结构。与聚酯混合的陶瓷粉末是介电常数高的TiO_2，SrTiO_3和BaTiO_3。通过这种方法可以更自由和广泛地控制光子晶体的介电​​常数。这些陶瓷/树脂光子晶体在7-11 GHz的微波带中形成了完整的光子带隙，可以完全反射所有晶体方向的电磁波。用复合晶格的介电常数控制带隙中透射幅度的衰减曲线。所得结果与电磁波通过光子晶体传播的理论模拟完全吻合。

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