A hollow dual-core PCF-SPR sensor with gold layers on the inner and outer surfaces of the thin cladding
A hollow dual-core photonic crystal fiber (PCF) with high sensitivity based on surface plasmon resonance (SPR) sensing is designed and analyzed numerically by the finite element method (FEM). This double-sided gold structure has not been reported before and provides a novel mechanism of SPR excitati...
Main Authors: | , , , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2020-11-01
|
Series: | Results in Optics |
Subjects: | |
Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950120300043 |
id |
doaj-7173bf16ce584ee69abcec8a7ee4354c |
---|---|
record_format |
Article |
spelling |
doaj-7173bf16ce584ee69abcec8a7ee4354c2021-06-08T04:44:25ZengElsevierResults in Optics2666-95012020-11-011100004A hollow dual-core PCF-SPR sensor with gold layers on the inner and outer surfaces of the thin claddingWei Liu0Famei Wang1Chao Liu2Lin Yang3Qiang Liu4Weiquan Su5Jingwei Lv6Sinuo An7Xianli Li8Tao Sun9Paul K. Chu10School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, PR ChinaInstitute of Materials Processing and Intelligent Manufacturing & Center for Biomedical Materials and Engineering, Harbin Engineering University, Harbin 150001, PR ChinaSchool of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, PR China; Corresponding authors.School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, PR ChinaSchool of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, PR ChinaWuhan National Laboratory of Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, PR ChinaSchool of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, PR ChinaSchool of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, PR ChinaSchool of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, PR ChinaMedia Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Corresponding authors.Department of Physics and Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, ChinaA hollow dual-core photonic crystal fiber (PCF) with high sensitivity based on surface plasmon resonance (SPR) sensing is designed and analyzed numerically by the finite element method (FEM). This double-sided gold structure has not been reported before and provides a novel mechanism of SPR excitation. In order to increase coupling effects between the plasmonic mode and the fundamental mode, double-sided gold films deposited on both inner and outer surface are selected. The sensing properties are enhanced remarkably by depositing gold films on the inner and outer surfaces of the thin cladding as manifested by more than 50 times improvement in the average sensitivity compared to the single-sided gold structure. The working wavelength of the sensor is controllable in the near-infrared region (1550–2700 nm) for analyte refractive indices (RIs) ranging from 1.36 to 1.41. Numercal simulation reveals that the average and maximum spectral sensitivities rise to 23,000 nm/RIU and 30,000 nm/RIU and the corresponding resolution is improved to 3.33 × 10−6 RIU. Compared with the unilaterally coated sensor with the same structural parameters, this bilaterally coated sensor offers distinctive advantages that are beneficial to the development of photonic sensors with ultrahigh sensitivity.http://www.sciencedirect.com/science/article/pii/S2666950120300043PCF-SPRBilaterally coated sensorNear-infraredFinite element method |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wei Liu Famei Wang Chao Liu Lin Yang Qiang Liu Weiquan Su Jingwei Lv Sinuo An Xianli Li Tao Sun Paul K. Chu |
spellingShingle |
Wei Liu Famei Wang Chao Liu Lin Yang Qiang Liu Weiquan Su Jingwei Lv Sinuo An Xianli Li Tao Sun Paul K. Chu A hollow dual-core PCF-SPR sensor with gold layers on the inner and outer surfaces of the thin cladding Results in Optics PCF-SPR Bilaterally coated sensor Near-infrared Finite element method |
author_facet |
Wei Liu Famei Wang Chao Liu Lin Yang Qiang Liu Weiquan Su Jingwei Lv Sinuo An Xianli Li Tao Sun Paul K. Chu |
author_sort |
Wei Liu |
title |
A hollow dual-core PCF-SPR sensor with gold layers on the inner and outer surfaces of the thin cladding |
title_short |
A hollow dual-core PCF-SPR sensor with gold layers on the inner and outer surfaces of the thin cladding |
title_full |
A hollow dual-core PCF-SPR sensor with gold layers on the inner and outer surfaces of the thin cladding |
title_fullStr |
A hollow dual-core PCF-SPR sensor with gold layers on the inner and outer surfaces of the thin cladding |
title_full_unstemmed |
A hollow dual-core PCF-SPR sensor with gold layers on the inner and outer surfaces of the thin cladding |
title_sort |
hollow dual-core pcf-spr sensor with gold layers on the inner and outer surfaces of the thin cladding |
publisher |
Elsevier |
series |
Results in Optics |
issn |
2666-9501 |
publishDate |
2020-11-01 |
description |
A hollow dual-core photonic crystal fiber (PCF) with high sensitivity based on surface plasmon resonance (SPR) sensing is designed and analyzed numerically by the finite element method (FEM). This double-sided gold structure has not been reported before and provides a novel mechanism of SPR excitation. In order to increase coupling effects between the plasmonic mode and the fundamental mode, double-sided gold films deposited on both inner and outer surface are selected. The sensing properties are enhanced remarkably by depositing gold films on the inner and outer surfaces of the thin cladding as manifested by more than 50 times improvement in the average sensitivity compared to the single-sided gold structure. The working wavelength of the sensor is controllable in the near-infrared region (1550–2700 nm) for analyte refractive indices (RIs) ranging from 1.36 to 1.41. Numercal simulation reveals that the average and maximum spectral sensitivities rise to 23,000 nm/RIU and 30,000 nm/RIU and the corresponding resolution is improved to 3.33 × 10−6 RIU. Compared with the unilaterally coated sensor with the same structural parameters, this bilaterally coated sensor offers distinctive advantages that are beneficial to the development of photonic sensors with ultrahigh sensitivity. |
topic |
PCF-SPR Bilaterally coated sensor Near-infrared Finite element method |
url |
http://www.sciencedirect.com/science/article/pii/S2666950120300043 |
work_keys_str_mv |
AT weiliu ahollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT fameiwang ahollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT chaoliu ahollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT linyang ahollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT qiangliu ahollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT weiquansu ahollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT jingweilv ahollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT sinuoan ahollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT xianlili ahollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT taosun ahollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT paulkchu ahollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT weiliu hollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT fameiwang hollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT chaoliu hollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT linyang hollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT qiangliu hollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT weiquansu hollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT jingweilv hollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT sinuoan hollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT xianlili hollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT taosun hollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding AT paulkchu hollowdualcorepcfsprsensorwithgoldlayersontheinnerandoutersurfacesofthethincladding |
_version_ |
1721390165061009408 |