TY - JOUR
T1 - High-Sensitivity D-Type Six-Hole PCF-SPR Sensor
AU - Xu, Liying
AU - Liu, Wei
AU - Luo, Xingdi
AU - Lv, Jingwei
AU - Yang, Lin
AU - Wang, Jianxin
AU - Liu, Qiang
AU - Chu, Paul K.
AU - Liu, Chao
PY - 2025/6
Y1 - 2025/6
N2 - Photonic crystal fiber (PCF) sensors based on surface plasmon resonance (SPR) have broad application prospects in biomedical sensing, food safety, chemical sensing, and other fields. However, many of the PCF-SPR sensors proposed so far have problems such as complicated structure, difficult fabrication, difficult fusion bonding with ordinary optical fibers, and low detection efficiency, which hinder the development of this technology. In order to reduce the difficulty of fiber fabrication, and improve the practicality of optical fiber, a D-type six-hole PCF-SPR sensor with a simple structure that can be fabricated easily is designed. In this structure, the cladding diameter is the same as that of the ordinary optical fiber, thus making it easier to fuse the two. By optimizing the structure of the sensor, the sensing characteristics are improved, as manifested by a maximum wavelength sensitivity and optimal resolution which are 36,000 nm/RIU and 2.78 × 10−6RIU, respectively, in conjunction with a detectable refractive index range of 1.3–1.395. Because of these advantages, including a simple structure and high sensitivity, the sensor has great potential and value in many fields, such as biomedical sensing, chemical sensing, and so on. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.
AB - Photonic crystal fiber (PCF) sensors based on surface plasmon resonance (SPR) have broad application prospects in biomedical sensing, food safety, chemical sensing, and other fields. However, many of the PCF-SPR sensors proposed so far have problems such as complicated structure, difficult fabrication, difficult fusion bonding with ordinary optical fibers, and low detection efficiency, which hinder the development of this technology. In order to reduce the difficulty of fiber fabrication, and improve the practicality of optical fiber, a D-type six-hole PCF-SPR sensor with a simple structure that can be fabricated easily is designed. In this structure, the cladding diameter is the same as that of the ordinary optical fiber, thus making it easier to fuse the two. By optimizing the structure of the sensor, the sensing characteristics are improved, as manifested by a maximum wavelength sensitivity and optimal resolution which are 36,000 nm/RIU and 2.78 × 10−6RIU, respectively, in conjunction with a detectable refractive index range of 1.3–1.395. Because of these advantages, including a simple structure and high sensitivity, the sensor has great potential and value in many fields, such as biomedical sensing, chemical sensing, and so on. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.
KW - Fabricated easily
KW - High-sensitivity
KW - Photonic crystal fiber
KW - Surface plasmon resonance
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85207914562&origin=recordpage
U2 - 10.1007/s11468-024-02530-y
DO - 10.1007/s11468-024-02530-y
M3 - RGC 21 - Publication in refereed journal
SN - 1557-1955
VL - 20
SP - 4149
EP - 4157
JO - Plasmonics
JF - Plasmonics
IS - 6
ER -