Supermodes of chiral photonic filters with combined twist and layer defects.
Supermodes of chiral photonic filters with combined twist and layer defects.
复制标题
具有组合扭曲和层缺陷的手性光子滤波器的超模。
DOI：
10.1103/physrevlett.91.223903
复制
发表时间：
2003
影响因子：
8.6
通讯作者：
A. Lakhtakia
中科院分区：
文献类型：
--
作者：
I. Hodgkinson;Qihong Wu;L. de Silva;M. Arnold;M. McCall;A. Lakhtakia
本文研究了具有中心扭转和各向同性层缺陷的手征光子晶体的圆偏振局域模。结果表明，随着结构厚度的增加，一般的滤波器会出现反常传输和线宽饱和现象。然而，通过选择相位匹配的各向同性层缺陷的往返矩阵的元素的参数，我们证明了存在的超级模式，保持异常纯度的偏振态和指数下降的线宽作为厚度的增加。
We consider the circularly polarized localized modes of chiral photonic structures with combined central twist and isotropic layer defects. The general filter is shown to suffer from anomalous remittance and saturation of linewidth as the thickness of the structure is increased. However, by choosing parameters that phase match the elements of the round-trip matrix of the isotropic layer defect, we demonstrate the existence of supermodes that maintain exceptional purity of polarization state and exponential decrease in linewidth as the thickness is increased.