A D-type dual side-polished, highly sensitive, plasma refractive index sensor based on photonic crystal fiber

Qinrong Zhang; Qinrong Zhang; Wei Li; Wei Li; Qingyin Ren; Qingyin Ren; Jiajin Zheng; Jiajin Zheng; Qiyun Xie; Qiyun Xie; Xiangfu Wang; Xiangfu Wang

doi:10.3389/fphy.2022.1008784

Frontiers in Physics (Sep 2022)

A D-type dual side-polished, highly sensitive, plasma refractive index sensor based on photonic crystal fiber

Qinrong Zhang,
Qinrong Zhang,
Wei Li,
Wei Li,
Qingyin Ren,
Qingyin Ren,
Jiajin Zheng,
Jiajin Zheng,
Qiyun Xie,
Qiyun Xie,
Xiangfu Wang,
Xiangfu Wang

Affiliations

Qinrong Zhang: College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, China
Qinrong Zhang: Jiangsu Province Engineering Research Center for Fabrication and Application of Special Optical Fiber Materials and Devices, Nanjing, China
Wei Li: College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, China
Wei Li: Jiangsu Province Engineering Research Center for Fabrication and Application of Special Optical Fiber Materials and Devices, Nanjing, China
Qingyin Ren: College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, China
Qingyin Ren: Jiangsu Province Engineering Research Center for Fabrication and Application of Special Optical Fiber Materials and Devices, Nanjing, China
Jiajin Zheng: College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, China
Jiajin Zheng: Jiangsu Province Engineering Research Center for Fabrication and Application of Special Optical Fiber Materials and Devices, Nanjing, China
Qiyun Xie: College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, China
Qiyun Xie: Jiangsu Province Engineering Research Center for Fabrication and Application of Special Optical Fiber Materials and Devices, Nanjing, China
Xiangfu Wang: College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, China
Xiangfu Wang: Jiangsu Province Engineering Research Center for Fabrication and Application of Special Optical Fiber Materials and Devices, Nanjing, China

DOI: https://doi.org/10.3389/fphy.2022.1008784
Journal volume & issue: Vol. 10

Abstract

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In this paper, a D-shape dual side-polished (DSP) photonic crystal fiber (PCF) sensor based on high sensitivity and high range refractive index (RI) is proposed and analyzed. The surface of the structure is plated with Au and TiO2, which can enhance the surface plasmon resonance (SPR) effect and sensitivity. The characteristics of the sensor were analyzed by finite element method (FEM). Its RI scope of detection is 1.38–1.42, and by optimizing geometric parameters, the optimal wavelength sensitivity (WS) is 22,100 nm/RIU. Additionally, the WS for DSP-PCF is far better than the recently reported PCF sensors in the above mentioned RI detection range to the best of our knowledge. With these significant outcomes over the analyte RI range, which is helpful for the fields of environmental detection and medical diagnosis.

Published in Frontiers in Physics

ISSN: 2296-424X (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Physics
Website: https://www.frontiersin.org/journals/physics

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