Validation of electromagnetic field enhancement in near-infrared through Sierpinski fractal nanoantennas

被引：31

作者：

Cakmakyapan, Semih ^{[1
,2
]}

Cinel, Neval A. ^{[2
]}

Cakmak, Atilla Ozgur ^{[3
]}

Ozbay, Ekmel ^{[1
,2
,4
]}

机构：

[1] Bilkent Univ, Dept Phys, TR-06800 Ankara, Turkey

[2] Bilkent Univ, Nanotechnol Res Ctr, TR-06800 Ankara, Turkey

[3] Penn State Univ, Ctr Nanotechnol Educ & Utilizat, University Pk, PA 16802 USA

[4] Bilkent Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 16期

关键词：

Fractals - Electromagnetic fields - Infrared devices - Nanoantennas;

D O I：

10.1364/OE.22.019504

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We introduced fractal geometry to the conventional bowtie antennas. We experimentally and numerically showed that the resonance of the bowtie antennas goes to longer wavelengths, after each fractalization step, which is considered a tool to miniaturize the main bowtie structure. We also showed that the fractal geometry provides multiple hot spots on the surface, and it can be used as an efficient SERS substrate. (C) 2014 Optical Society of America

引用

页码：19504 / 19512

页数：9

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