Light propagation in three-dimensional photonic crystals
Light propagation in three-dimensional photonic crystals
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DOI：
10.1364/oe.18.000386
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发表时间：
2010-01-04
期刊：
影响因子：
3.8
通讯作者：
Noda, Susumu
中科院分区：
文献类型：
--
作者：
Kawashima, Shoichi;Ishizaki, Kenji;Noda, Susumu
我们演示了两种类型的波导形成在三维（3D）光子晶体（PC）的操作。我们首先通过堆叠受体型缺陷来创建垂直波导，其中近红外光在堆叠方向上传播。光在该波导中的传输与偏振无关，因为电磁波耦合到从缺陷的结构对称性导出的简并模式。然后，我们将水平和垂直波导连接起来，形成一个L形波导，它能够在3D PC中将近红外光从水平方向引导到垂直方向。我们设想通过优化波导结构和增加垂直方向的PC周期来实现更复杂的3D光互连。(C)2009年美国光学学会
We demonstrate the operation of two types of waveguides formed in three-dimensional (3D) photonic crystals (PCs). We first created a vertical waveguide by stacking acceptor-type defects, in which near-infrared light propagates in the stacking direction. Light is transmitted independent of polarization in this waveguide because electromagnetic waves couple to a degenerate mode derived from the structural symmetry of the defects. We then connected horizontal and vertical waveguides to form an L-shaped waveguide, which is able to guide near-infrared light from the horizontal to vertical direction in the 3D PC. We envisage the realization of more complex 3D optical interconnections by optimizing the waveguide structures and increasing the PC period in the vertical direction. (C) 2009 Optical Society of America