Extraordinary optical transmission through a subwavelength composite hole-pillar array

被引：6

作者：

Shao Wei-Jia ^{[1
,2
,3
]}

Li Wei-Min ^{[1
,2
]}

Xu Xiao-Liang ^{[3
]}

Wang Hui-Jie ^{[3
]}

Wu Yi-Zhi ^{[3
]}

Yu Jing ^{[3
]}

机构：

[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Peoples R China

[3] Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China

来源：

CHINESE PHYSICS B | 2014年 / 23卷 / 11期

基金：

中国国家自然科学基金;

关键词：

surface plasmon polariton resonance (SPPR); transmission; optical filter; RESONANCES; PLASMONS;

D O I：

10.1088/1674-1056/23/11/117301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We numerically investigate the transmission properties of a subwavelength composite hole-pillar array. As the radius of the pillar increases, the transmission properties experience a complex evolution. It is found that the magnetic dipole resonance of the pillar suppresses the surface plasmon polariton resonance (SPPR) at the gold-air interface. There are two strong transmission peaks associated with the magnetic dipole resonance of pillar and SPPR at the gold-silica interface. A peak associated with magnetic quadrupole resonance of the pillar is observed. Moreover, there is a weak peak associated with the coupling between the whispering-gallery plasmon (WGP) mode and magnetic dipole. Our work is helpful for making a dual band optical filter.

引用

页数：6

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