Article
Physics, Applied
Yundong Liu, Hailiang Chen
Summary: The study proposed a dual-polarized photonic crystal fiber sensor based on SPR for measuring the refractive indexes of liquids in the range of 1.36-1.42, achieving dual-polarized detection through external SPR effect, with maximum RI sensitivities of 15,900 nm RIU-1 and 16,900 nm RIU-1, respectively.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Shi Qiu, Jinhui Yuan, Sainan Duan, Xian Zhou, Chao Mei, Yuwei Qu, Binbin Yan, Qiang Wu, Kuiru Wang, Xinzhu Sang, Keping Long, Chongxiu Yu
Summary: Helically twisted photonic crystal fibers (HT-PCFs) offer additional possibilities for controlling light propagation and enhancing sensing capabilities. This paper proposes a toluene and gold wire-filled HT-PCF for high sensitivity temperature sensing, investigating the influences of structure parameters. The optimized HT-PCF shows high sensitivity in different temperature ranges and is insensitive to hydrostatic pressure, with potential applications in environmental monitoring and medical diagnostics.
RESULTS IN PHYSICS
(2021)
Article
Optics
Chung-Ting Chou Chao, Muhammad Raziq Rahimi Kooh, Yuan-Fong Chou Chau, Roshan Thotagamuge
Summary: This paper proposes a simple surface plasmon resonance-based elliptical air hole photonic crystal fiber sensor, analyzes the key factors affecting sensor performance through numerical simulations, and demonstrates its potential application in biomolecular and biological analyte detection.
Article
Chemistry, Analytical
Xin Yan, Yao Wang, Tonglei Cheng, Shuguang Li
Summary: This paper presents a refractive index sensor model based on Photonic Crystal Fiber (PCF) and utilizes the surface plasmon resonance effect for measurement, showing high sensitivity and good linearity, making it suitable for liquid sensing.
Article
Physics, Applied
Pibin Bing, Guifang Wu, Zhongyang Li, Sheng Yuan, Hongtao Zhang, Juan Xu, Jianquan Yao
Summary: The PCF sensor based on SPR technology has flexibility in various aspects but faces challenges in practical application, such as complex design and low sensitivity. To address these issues, a new structure with longer vertical distance between the D-shaped large air hole channel and the core is proposed, resulting in enhanced plasma mode and improved wavelength sensitivity. The combination of hexagonal double-clad air hole structure and D-type structure ensures a simple design and facilitates manufacturing, leading to greatly enhanced wavelength sensitivity and promising applications in high-sensitivity detection.
MODERN PHYSICS LETTERS B
(2021)
Article
Engineering, Electrical & Electronic
Ahmet Yasli, Huseyin Ademgil
Summary: This study designs a gold and silver coated multi-channel photonic crystal fiber based surface plasmon resonance sensor structure for simultaneous detection of a wide range of refractive indices. Bending analysis and sensitivity performance evaluation show that bending enhances the sensitivity of the y-polarized mode while the x-polarized mode remains almost unchanged. Spectral analysis further demonstrates that the sensitivity performance of the bent structure can be improved up to 50% by bending. This proposed structure is capable of detecting analytes between 1.33-1.36 RIs and has great potential in biomedical and biochemical applications.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Chemistry, Physical
Xiaotong Guo, Yueke Wang, Tian Sang, Guofeng Yang, Qi Yao
Summary: We propose a surface plasmon resonance (SPR) sensor based on a concave photonic crystal fiber (PCF) coated with molybdenum disulfide (MoS2) and Au layers, which can detect the refractive index (RI) of the analyte. The sensitivity and performance of the sensor are significantly improved compared to a SPR sensor with only an Au layer. The sensor has a wide RI range, high resolution, and excellent potential in various applications.
Article
Chemistry, Analytical
Qianhe Zhao, Jin Liu, Haima Yang, Haishan Liu, Guohui Zeng, Bo Huang
Summary: This study presents a surface plasmon resonance sensor based on a D-shaped germanium-doped photonic crystal fiber, investigating the coupling and birefringence properties through simulations of structure parameters. Different surface plasmon polariton coupling modes are observed at varying refractive indices, with an optimal sensitivity and resolution achieved at certain conditions. The sensor exhibits high birefringence and linear performance.
Article
Chemistry, Analytical
Md. Ranju Sardar, Mohammad Faisal
Summary: This research article presents a photonic crystal fiber (PCF) based on a surface plasmon resonance (SPR) sensor for detecting refractive index (RI) of unknown analytes. The PCF is modified by placing a plasmonic material layer (gold) outside the PCF, creating a D-shaped PCF-SPR sensor. Numerical investigation using finite element method (FEM) shows that the proposed PCF-SPR sensor exhibits high sensitivity with maximum wavelength sensitivity of 9000 nm/RIU, amplitude sensitivity of 3746 RIU-1, and a sensor resolution of 1 x 10(-5) RIU. The miniaturized structure and high sensitivity make it a promising candidate for detecting RI of analytes ranging from 1.28 to 1.42.
Article
Engineering, Electrical & Electronic
Wei An, Chao Li, Dong Wang, Wenya Chen, Shijing Guo, Song Gao, Chunwei Zhang
Summary: This paper proposes a high-sensitivity fan-shaped photonic crystal fiber sensor based on surface plasmon resonance (SPR) and explores its sensing performance and coupling characteristics. The sensor exhibits excellent wavelength sensitivity and resolution in the near infrared region. It also shows a sharp loss peak that can be used to detect the refractive index of unknown analytes and has promising stability.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Optics
Xin Yan, Rongxu Shen, Tonglei Cheng, Shuguang Li
Summary: This paper proposes an asymmetric photonic crystal fiber polarization filter near the gold-clad hole based on surface plasmon resonance (SPR), which separates x and y polarization modes effectively by changing the coating of air holes, showing excellent filtering performance.
OPTICS COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Shengxi Jiao, Xiaolei Ren, Hanrui Yang, Shibo Xu, Xinzhi Li
Summary: A dual-core photonic crystal fiber with dual-channel-based surface plasmon resonance sensor is developed for highly sensitive detection of two analytes simultaneously, achieving average spectral sensitivities of 4280 and 3940 nm/RIU and RI resolutions of 2.34 x 10(-5) and 2.54 x 10(-5) RIU for left and right channels, respectively. The designed sensor shows potential for wide application in biomedical analysis and environmental monitoring.
Article
Chemistry, Physical
Yihong Fei, Biyun Luo, Mengdi An, Tianqi Hu, Wen Lin, Hongzhi Jia
Summary: This research proposes a D-shaped dual-core photonic crystal fiber sensor based on surface plasmon resonance (SPR). By optimizing structural parameters and introducing an elliptical air hole, the sensor exhibits high sensitivity to changes in refractive index. The sensor shows outstanding responsiveness and promising applications.
Article
Chemistry, Physical
Ankur Gupta, Rohit Gadia, Ankit Singh, Rajat Kumar Singh, Akhilesh Tiwari
Summary: This study discusses the analysis of a surface plasmon resonance (SPR)-based D-shape photonic crystal fiber (PCF) biosensor for the detection of multimolecules present in a single analyte or simultaneous detection of more than one samples of an analyte. By optimizing the dimensions of the sensor, it is possible to control the wavelengths of the two SPR peaks, and for some optimal set of dimensions, although the sensitivity is the same, the confinement loss of the plasmonic peaks is higher, which may be useful in certain biosensor applications.
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.
