Far-infrared properties of hybrid plasmonic geometries

被引:1
|
作者
Lu, Xinchao [1 ,2 ]
Rockstuhl, Carsten [3 ]
Zhang, Weili [1 ]
机构
[1] Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA
[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China
[3] Univ Jena, Inst Condensed Matter Theory & Solid State Opt, Abbe Ctr Photon, D-07743 Jena, Germany
基金
美国国家科学基金会;
关键词
LIGHT TRANSMISSION; APERTURE ARRAYS; METALLIC-FILMS; TERAHERTZ; SPECTROSCOPY; BEAMS;
D O I
10.1364/JOSAA.29.000644
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Plasmonic structures made of periodically arranged metallic rings integrated into subwavelength holes are investigated at the far-infrared terahertz frequencies. The emergence and the interplay of various resonances sustained by such plasmonic samples are elucidated. To reveal a coherent physical picture, relevant dimensions of the samples are modified and their impact on the resonance properties is analyzed. The experimental work is fully supported by numerical simulations. The understanding of the interplay of various resonances will foster applications which require plasmonic substrates to exhibit simultaneously resonances at well-defined frequencies and line widths. (C) 2012 Optical Society of America
引用
收藏
页码:644 / 648
页数:5
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