Modelling defect cavities formed in inverse three-dimensional rod-connected diamond photonic crystals
Modelling defect cavities formed in inverse three-dimensional rod-connected diamond photonic crystals
复制标题
模拟逆三维棒连接金刚石光子晶体中形成的缺陷空腔
DOI：
10.1209/0295-5075/116/64007
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
J. Rarity
中科院分区：
文献类型：
--
作者：
M. Taverne;Y. Ho;Xu Zheng;S. Liu;Lifeng Chen;M. López;J. Rarity
三维光子晶体中的缺陷腔可以在介质材料允许的最小体积内捕获和存储光，增强了非线性和腔QED效应。本文利用平面波展开法和时域有限差分法研究了含有点缺陷腔的逆杆连接金刚石（RCD）晶体。通过优化晶体的尺寸，可以获得较宽的光子带隙。然后可以通过在晶体中引入点缺陷来设计中带隙共振。研究了高折射率-对比度（3.3:1）逆RCD结构中不同位置的多种单球面缺陷；计算了谐振腔模的质量因子（q因子）和模体积。通过选择由位于四面体排列中心的单个球体缺陷组成的对称排列，获得了< 0.06立方波长的模体积，这是高折射率空腔的记录。
Defect cavities in 3D photonic crystal can trap and store light in the smallest volumes allowable in dielectric materials, enhancing non-linearities and cavity QED effects. Here, we study inverse rod-connected diamond (RCD) crystals containing point defect cavities using plane-wave expansion and finite-difference time domain methods. By optimizing the dimensions of the crystal, wide photonic bandgaps are obtained. Mid-bandgap resonances can then be engineered by introducing point defects in the crystal. We investigate a variety of single spherical defects at different locations in the unit cell focusing on high-refractive-index-contrast (3.3:1) inverse RCD structures; quality factors (Q-factors) and mode volumes of the resonant cavity modes are calculated. By choosing a symmetric arrangement, consisting of a single sphere defect located at the center of a tetrahedral arrangement, mode volumes < 0.06 cubic wavelengths are obtained, a record for high-index cavities.
聚合物棒连接金刚石结构中近红外部分光子带隙的证据。
影响因子：
3.8
作者：
Chen L
通讯作者：
Chen L