Complete band gaps in one-dimensional photonic crystals with negative refraction arising from strong chirality

被引：12
|
作者：
Cao, Yusheng [1 ]
Li, Junqing [1 ]
机构：
[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
来源：
PHYSICAL REVIEW B | 2014年 / 89卷 / 11期
基金：
中国国家自然科学基金;
关键词：
LIGHT;
D O I：
10.1103/PhysRevB.89.115420
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, we propose the idea of using chiral negatively refractive media to realize three-dimensional (3D) complete band gaps in the one-dimensional (1D) photonic crystals with a two-layer unit cell. We explain why at least a three-layer unit cell is necessary for realizing the 3D complete band gaps in 1D achiral photonic crystals, and show how we can reduce the number of layers of the unit cell to two if chirality is introduced. Although the media with strong chirality supply negative refraction only for one of the two eigenwaves, the complete band gaps could be still obtained with an even simpler lattice structure compared to the achiral counterpart.
引用
收藏
页数：5
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