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Proceedings Paper

Refractive index sensor based on total scattering of plasmonic nanotube
Author(s): Kaiqiang Yao; Qingbing Zeng; Zengrong Hu; Yaohui Zhan
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Paper Abstract

Plasmonic nanostructures can couple free space light into anultrafine space; therefore,they are employed extensively in the refractive index sensors to minimize the device size or further improve the detection sensitivity. In this work, the optical response of the plasmonic nanotube are investigated comprehensively by using full wave finite element method. With a subwavelength scale, the silver nanotube have prominent scattering peaks in the visible range, which is very suitable for observing through the dark field microscope. The geometric dependence of the scattering spectra and the sensing performance are evaluated carefully. Results show that the scattering peaks are in linear relationship to the circumstance refractive index and a sensitivity of ~337 nm/RIUcan be achieved easily by such a plasmonicnanotube with an optimized size.

Paper Details

Date Published: 5 March 2018
PDF: 6 pages
Proc. SPIE 10710, Young Scientists Forum 2017, 107100V (5 March 2018); doi: 10.1117/12.2317471
Show Author Affiliations
Kaiqiang Yao, Soochow Univ. (China)
Qingbing Zeng, AVIC Shanghai Aircraft Aviation Electric Co., Ltd. (China)
Zengrong Hu, Soochow Univ. (China)
Yaohui Zhan, Soochow Univ. (China)

Published in SPIE Proceedings Vol. 10710:
Young Scientists Forum 2017
Songlin Zhuang; Junhao Chu; Jian-Wei Pan, Editor(s)

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