Two dimension photonic crystal Y-branch beam splitter with variation of splitting ratio based on hybrid defect controlled
Two dimension photonic crystal Y-branch beam splitter with variation of splitting ratio based on hybrid defect controlled
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DOI：
10.1007/s00339-014-8701-z
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发表时间：
2014-08
期刊：
影响因子：
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通讯作者：
T. Chantakit;K. Srinuanjan;P. Yupapin
中科院分区：
文献类型：
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作者：
T. Chantakit;K. Srinuanjan;P. Yupapin
提出了一种新的具有缺陷控制的Y分支二维光子晶体的混合设计。该结构由空气包围的InP纳米棒的六边形阵列制成。该系统包括对聚甲基丙烯酸甲酯（PMMA）棒的改进添加/改变，其可以应用于分束器选择装置。PMMA缺陷棒的光学性质和径向发生了变化。通过选择合适的温度，折射率和展开半径发生变化。所得结果表明，在1.557 μm波长处，在杂化聚合物-聚合物Y分支中的选定光振幅可以分离到50- 50%、60- 40%和67- 33%。利用OptiFDTD软件，采用二维时域有限差分（FDTD）方法计算了光子晶体的带隙和透射谱。这种器件可用于集成光路中的光子晶体开关器件。
This article represents a new Y-branch hybrid design of 2D photonic crystal with defect control. The structure is made of hexagonal arrays of InP nano-rods surrounded by air. This system is comprised of a modified add/change to a polymethylmethacrylate (PMMA) rod, which can be applied to the beam splitter selection device. The optical properties and radial of PMMA defect rods have been transfigured. By selecting an appropriate temperature, a change of refractive index and expanded radius are occurred. The obtained results have shown that the selected optical amplitude in a hybrid semiconductor-polymer Y-branch can be separated to 50–50, 60–40 and 67–33 % at wavelength 1.557 µm. Both of the photonic band gap and transmission spectra are calculated by using 2D finite different time domain (FDTD) method via OptiFDTD software. Such a device can be useful for photonic crystal switching devices in the integrated optical circuit.