Electromagnetic wave control of ceramic/resin photonic crystals with diamond structure
Electromagnetic wave control of ceramic/resin photonic crystals with diamond structure
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DOI：
10.1016/j.stam.2003.11.006
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发表时间：
2004-01-01
影响因子：
5.5
通讯作者：
Miyamoto, Y
中科院分区：
文献类型：
--
作者：
Kirihara, S;Takeda, M;Miyamoto, Y
将陶瓷和聚酯混合浆料渗透到具有反金刚石结构的环氧树脂模具中，制备了介电常数周期性排列的毫米级光子晶体。采用立体光刻CAD/CAM工艺对环氧树脂模具进行了设计和加工。制备了具有金刚石结构的陶瓷/聚酯复合晶格的光子晶体，并将其嵌入环氧基中。与聚酯混合的陶瓷粉末是具有高介电常数的TiO2、SrTiO3和BaTiO3。用这种方法可以更自由、更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的微波波段形成完整的光子带隙，可以完全反射电磁波的各个晶体方向。带隙中透射振幅的衰减曲线由复合晶格的介电常数控制。所得结果与光子晶体中电磁波传播的理论模拟结果基本一致。(C) 2003 Elsevier Ltd.版权所有。
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 TiO2, SrTiO3, and BaTiO3 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. (C) 2003 Elsevier Ltd. All rights reserved.