Realization of three-dimensional guiding of photons in photonic crystals
Realization of three-dimensional guiding of photons in photonic crystals
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DOI：
10.1038/nphoton.2012.341
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发表时间：
2013-02-01
期刊：
影响因子：
35
通讯作者：
Noda, Susumu
中科院分区：
文献类型：
--
作者：
Ishizaki, Kenji;Koumura, Masaki;Noda, Susumu
三维光子晶体（1-10）有望为实现光子的三维操纵提供基本的构建模块。然而，由于缺乏精确控制三维弯曲和引导的系统设计原理，以及实现大面积、无缺陷三维光子晶体所需的制造技术的进步，光子的任意三维操纵尚未得到证明。在这里，我们开发了三维波导和弯曲的新设计概念，并在硅三维光子晶体中进行了实验实现。我们展示了清晰的三维光导现象，其中光从一侧入射到晶体上，垂直和水平弯曲（甚至分成两部分或被中间纳米腔捕获），最后从晶体的另一侧发射。这些结果将为实现具有各种功能的三维光学芯片打开大门。
Three-dimensional photonic crystals(1-10) are expected to provide a fundamental building block for the realization of three-dimensional manipulation of photons. However, because of the lack of systematic design principles to precisely control bending and guiding in three dimensions, as well as advancements in the fabrication technology necessary for the realization of large-area, defect-free three-dimensional photonic crystals, the arbitrary three-dimensional manipulation of photons has yet to be demonstrated. Here, we develop a new design concept for three-dimensional waveguides and bends, and realize it experimentally in silicon three-dimensional photonic crystals. We demonstrate clear three-dimensional optical guiding phenomena, in which light is incident on the crystal from one side, is bent vertically and horizontally (and is even split into two or trapped by an intermediate nanocavity), and is finally emitted from the other side of the crystal. These results will open the door to the realization of three-dimensional optical c hips with various functionalities.