Theoretical research of the medical U-type optical fiber sensor covered by the gold nanoparticles-Reference-Cited by-同舟云学术

Theoretical research of the medical U-type optical fiber sensor covered by the gold nanoparticles

Published:2021-03-03 Issue:5 Volume:76 Page:385-393
ISSN:1865-7109
Container-title:Zeitschrift für Naturforschung A
language:en
Short-container-title:

Author:

Luo Ying-Jie¹,Wu Shao-Yi¹,Zhu Qin-Sheng¹,Li Xiao-Yu²,Li Yong-Xin³,Zhao De-Shuang¹

Affiliation:

1. Department of Physics , University of Electronic Science and Technology of China , Chengdu 610054 , P.R. China

2. School of Information and Software Engineering, University of Electronic Science and Technology of China , Chengdu 610054 , P.R. China

3. Research Center of Analytical Instrumentation, Key Laboratory of Bio-resource and Eco-environment, Ministry of Education, College of Life Sciences, Sichuan University , Chengdu 610065 , P.R. China

Abstract

Abstract Previous studies of the gold-nanoparticles-covered U-type medical optical fiber sensor with millimeter size were mainly confined to the experimental aspect, while the corresponding theoretical studies were only for bare fibers based on geometrical optics or those for micron level photonic crystal fibers based on wave optics. Combining wave and geometrical optics, the gold-nanoparticles-covered U-type optical fiber sensor was simulated with millimeter size. The localized surface plasmon resonance absorption peak near 540 nm is obtained in the simulation, very close to that (≈560 nm) of the experimental value for the gold nanoparticles of 37 nm size. Compared with the refractive index (RI) sensitivity (≈7.10/RIU) for the plain, U-type optical fiber (≈43.50/RIU) exhibits more than 610% enhancement in the gold-nanoparticles-covered sample. Present studies would be helpful to the further simulation and design for various noble metal nanoparticles covered optical fiber sensors with different shapes.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics

Link

https://www.degruyter.com/document/doi/10.1515/zna-2020-0218/pdf

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