Localized surface plasmon sensor using a hetero-core structured fiber optic with gold island films

被引：1
作者：
Hosoki, Ai [1 ]
Nisiyama, Michiko [1 ]
Watanabe, Kazuhiro [1 ]
机构：
[1] Soka Univ, Fac Sci & Engn, 1-236 Tangi, Hachioji, Tokyo 1928577, Japan
来源：
28TH MICROMECHANICS AND MICROSYSTEMS EUROPE WORKSHOP | 2017年 / 922卷
关键词：
D O I：
10.1088/1742-6596/922/1/012018
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper reports the effect of applying a gold islands film to the hetero-core structured optical fiber, which is fabricated by annealing thin Au films of 3 nm and 5 nm thicknesses and its sensing performance for the RI changes. We experimentally observe that novel LSPR spectra for 1.333 RIU appear in the visible-to-near-infrared region depending on the shape of Au islands. The absorbance and spectral sensitivities for a given refractive index region of the tested solvents were obtained to be 4.81 AU/RIU and 517 nm/RIU, respectively, in the range of 1.333-1.384 RIU in the case of 5-nm-thick Au film annealed at 900 degrees C.
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页数：6
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