Article
Polymer Science
Jingao Zhang, Jinhui Yuan, Yuwei Qu, Shi Qiu, Chao Mei, Xian Zhou, Binbin Yan, Qiang Wu, Kuiru Wang, Xinzhu Sang, Chongxiu Yu
Summary: This paper proposes an SPR-based PCF sensor for simultaneous measurement of RI and temperature, with high sensitivities and independent detection capabilities.
Article
Engineering, Electrical & Electronic
Zhenkai Fan, Jianye Qin, Junling Gao, Shichao Chu
Summary: This paper proposes a surface plasmon enhanced refractive index sensor based on tunable liquid core photonic crystal fiber (PCF). The performance of the sensor is calculated and analyzed using the finite element method. The results show that the sensor has a high sensitivity and is suitable for refractive index detection.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Crystallography
Qingmin Liu, Junpeng Chen, Shanglin Hou, Jingli Lei
Summary: In this study, a micro-polishing-fiber-based surface plasmon resonance (MPF-SPR) sensor is proposed and demonstrated. The sensor has a simple structure and high sensitivity, making it suitable for mass production. By applying an indium tin oxide (ITO) film on the polished surface, plasmonic interactions and refractive index (RI) detection can be achieved. The sensor exhibits a high wavelength sensitivity in a wide detection range, making it promising in the fields of optics, biomedicine, and chemistry.
Article
Physics, Applied
Zhiyong Yin, Xili Jing, Yuhui Feng, Zhigang Gao, Biao Wu, Chengjun Wang
Summary: A twin-core photonic crystal fiber sensor has been proposed for simultaneous measurement of liquid refractive index and temperature. The sensor has two channels for measuring refractive index and temperature, without mutual interference, and reduces the complexity of the measurement. The sensor has a maximum spectral sensitivity when the liquid refractive index is in the range of 1.36-1.42 and the temperature is in the range of 0°C-50°C.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Vicky Kapoor, Navneet K. Sharma
Summary: We propose and experimentally analyze fiber optic surface plasmon resonance sensors based on bi-layers of Ag-TiO2 and Ag-Cu2O. The influence of oxide layer thickness on sensor sensitivity is discussed. It is found that sensors based on Ag-Cu2O bi-layers are more sensitive than those based on Ag-TiO2 bi-layers. Additionally, the sensor based on 40 nm Ag-5 nm Cu2O bi-layers achieves the highest sensitivity, which diminishes with an increase in Cu2O layer thickness beyond 5 nm.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Crystallography
Wangyoyo Li, Jianjie Xu, Menglin Jiang, Yu Chen, Hui Zou
Summary: A novel polished-D-shape photonic crystal fiber sensor structure based on surface plasmon resonance is proposed for measuring analyte refractive index. The structure is analyzed through numerical simulations and optimization, achieving optimal performance with maximum and average sensitivities of 32,000 and 12,167 nm/RIU, and a refractive index sensing coverage from 1.26 to 1.32. The proposed sensor design also obtains a range of resonant wavelength from 1810 to 2540 nm, making it a potential candidate for organic and biological detection and related applications.
Article
Optics
S. M. Abu Sufian Sunny, Tanvir Ahmed, Sohani Munteha Hiam, Alok Kumar Paul
Summary: A new configuration of a photonic crystal fiber with dual-core utilizing surface plasmon resonance as an RI sensor is proposed, extending the analyte sensing range to 1.43 by investigating the best field path and achieving maximum wavelength sensitivity of 44,000 nm/RIU for x-polarization and 50,000 nm/RIU for y-polarization. The sensor shows high sensitivity and a wide sensing range, making it suitable for detecting unknown biological or biochemical samples.
Article
Materials Science, Multidisciplinary
Dehuai Xie, Haiwei Zhang, Guangyao Wang, Lifang Xue, Xiaoping Yang, Wei Shi, Jianquan Yao
Summary: This study introduces and demonstrates a novel refractive-index sensor based on photonic crystal fiber and surface plasmon resonance, suitable for detecting the refractive index of materials ranging from 1.15 to 1.45 with optimized RI sensitivity and R-2 values. Experimental results show high sensitivity and stability in detecting alcohol with different concentrations, indicating the potential of the sensor for practical applications.
RESULTS IN PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Haiming Yang, Guangyao Wang, Ying Lu, Jianquan Yao
Summary: The SPR sensor based on dual-layered air hole shaped photonic crystal fiber achieves high sensitivity simultaneous measurement of refractive index, with good sensing properties and the potential for real-time accurate measurement in biomedical, biological, and organic chemical domains.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Optics
Chao Mei, Yuan Wu, Shi Qiu, Jinhui Yuan, Xian Zhou, Keping Long
Summary: A dual-core photonic crystal fiber filled with toluene-ethanol, based on surface plasmon resonance effect, is designed for temperature sensing. By adjusting the refractive index of the filling materials, the sensor can measure different temperatures. After optimizing the structure parameters, the sensitivity of the temperature sensor can reach 6.32 nm/degrees C.
OPTICS COMMUNICATIONS
(2022)
Article
Crystallography
Wangyoyo Li, Yu Chen, Jianjie Xu, Menglin Jiang, Hui Zou
Summary: A new photonic crystal fiber biosensor structure based on surface plasmon resonance is proposed in this study, which can simultaneously measure the refractive index (RI) and temperature. The biosensor structure has thin gold film coatings on the central and external surfaces, and a temperature-sensitive material (TSM) filled hole adjacent to the inner gold film. Numerical simulations show that the biosensor structure achieves wavelength sensitivities of 7080 nm/RIU and 3.36 nm/°C, with RI coverage from 1.36 to 1.41 and temperature coverage from 0 to 60°C. It is believed that this biosensor structure can find applications in medical diagnostics and environmental assessments.
Article
Engineering, Multidisciplinary
Wei Luo, Jinwei Meng, Xuejin Li, Qingli Xie, Duo Yi, Yanyong Wang, Xueming Hong
Summary: A comprehensive temperature Drude theoretical model has been established to study the effects of temperature on side-polished photonic crystal fiber surface plasmon resonance sensors. The finite element method was used to analyze the influence of various parameters on sensor performance, revealing different sensitivity levels to temperature changes. The experimental results of a side-polished D-shaped PCF SPR sensor show good agreement with the theoretical investigations, suggesting potential for improved sensor design and data processing.
Article
Chemistry, Analytical
Olga Rusyakina, Thomas Geernaert, Mederic Loyez, Maxime Lobry, Karima Chah, Pawel Mergo, Hugo Thienpont, Christophe Caucheteur, Francis Berghmans, Tigran Baghdasaryan
Summary: We address the challenge of spectral multiplexing of biosensors in a single optical fiber by combining photonic crystal fibers (PCF) with fiber Bragg grating technology. We utilize the optical transmission spectrum of a straight fiber Bragg grating in a PCF to excite cladding mode resonances, enabling plasmonic label-free biodetection of HER2 protein. Our PCF sensor can detect a protein concentration of 8.62 nM with high reproducibility.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Xin Yan, Rao Fu, Tonglei Cheng, Shuguang Li
Summary: This study introduces a highly sensitive surface plasmon resonance refractive index sensor based on photonic crystal fiber, with high linearity and refractive index sensitivity achieved through optimized PCF structure. The sensor can be applied in various fields such as biological monitoring, environmental monitoring, and chemical production.
Article
Optics
Ghahramani Soghra, Barvestani Jamal, Meshginqalam Bahar
Summary: This article introduces a photonic crystal fiber (PCF) sensor that utilizes surface plasmon resonance (SPR) for refractive index detection, aiming to achieve high sensitivity. The study shows that the sensor has great potential in chemical and biomedical detection due to its high sensitivity and low fabrication complexity.