Engineering the imaging properties of a metallic photonic-crystal slab lens

被引:22
|
作者
Feng, SA [1 ]
Li, ZY [1 ]
Feng, ZF [1 ]
Cheng, BY [1 ]
Zhang, DZ [1 ]
机构
[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1063/1.2166470
中图分类号
O59 [应用物理学];
学科分类号
摘要
Focusing properties of a two-dimensional metallic photonic crystal (PC) slab lens are studied through the finite-difference time-domain technique. The PC consists of a square lattice of metallic cylinders immersed in a dielectric background. A good-quality image can form in the opposite side of the slab in both the lowest and second higher transverse magnetic-polarized photonic bands, consistent with the analysis of equifrequency-surface contours. The all-angle negative refraction can be realized and controlled by simply adjusting the background material permittivity. (c) 2006 American Institute of Physics.
引用
收藏
页码:1 / 3
页数:3
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