Fanolike resonance in light transmission through a planar array of silver circular disks

被引：13

作者：

Chen, Jing ^{[1
]}

Xu, Rongqing ^{[1
]}

Mao, Peng ^{[2
]}

Liu, Yuanjian ^{[1
]}

Tang, Chaojun ^{[3
]}

Liu, Jianqiang ^{[4
]}

Zhang, Labao ^{[2
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Coll Elect Sci & Engn, Nanjing 210046, Jiangsu, Peoples R China

[2] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[3] Zhejiang Univ Technol, Dept Appl Phys, Hangzhou 310023, Zhejiang, Peoples R China

[4] Jiujiang Univ, Sch Sci, Jiujiang 332005, Peoples R China

来源：

MATERIALS LETTERS | 2014年 / 136卷

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

Optical materials and properties; Metallic nanoparticles; Microstructure; EXTRAORDINARY OPTICAL-TRANSMISSION; SUBWAVELENGTH APERTURES; PLASMONIC SYSTEMS; PHOTONIC CRYSTALS; HOLE ARRAYS; GRATINGS; PARTICLE; SHIFTS;

D O I：

10.1016/j.matlet.2014.08.055

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We studied theoretically light transmission through a planar rectangular array of silver circular disks. An asymmetric lineshape, which is characteristic of the Fano resonance, has been found in a narrow frequency range of the spectrum. The effect can be attributed to the strong coupling between localized particle plasmon resonances excited on individual silver circular disks and an in-plane propagating collective surface mode arising from the array periodicity, as indicated by the anticrossing behavior of the resonance positions in the transmission spectra. More importantly, it was found that a fifty-two fold enhancement of electric field was achieved as compared with the purely resonance at the excitation of this Fanolike resonance; and only a collective surface mode with its electric field parallel to the array plane can mediate the excitation of such a Fanolike resonance. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：205 / 208

页数：4

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