Polymer Composite Based No-Core Fiber Structure as Refractive Index Sensor

Abstract:

This study theoretically proposes a refractive index (RI) sensor based on a polymer composite with a no-core fiber (NCF) design structure. Sensor designs with diameter variations of 125 µm, 105 µm, and 85 µm are simulated using the Wave Optics Module of COMSOL Multiphysics® software. The sensors are characterized within an analyte range of 1.470 RIU to 1.500 RIU, at intervals of 0.005 RIU. The results demonstrate effective interaction between the structure and the sensing medium. The highest recorded sensitivity is 4×10⁻⁶ (dimensionless) for the 85 µm sensor, followed by 2×10⁻⁶ for the 105 µm sensor, and 1×10⁻⁶ for the 125 µm sensor. This study offers valuable insights, guiding the optimal design of polymer-based RI sensors for future environmental monitoring, chemistry, and biomedicine applications.

• Periodical: Materials Science Forum (Volume 1153)
• Pages: 77-82
• DOI: https://doi.org/10.4028/p-JH4ZTu
• Online since: June 2025
• Authors: Nur Najahatul Huda Saris*, Nazirah Mohd Razali, Toshimi Fukui, Takaaki Ishigure, Marinah Othman, Azura Hamzah, Nurul Ashikin Daud
• Keywords: No-Core Fiber Structure, Polymer, Refractive Index Sensor, Simulation

References

[1] M. Alsharari, J. Wekalao, S. K. Patel, K. Aliqab, and A. Armghan, "Enhanced Sensing Efficiency of Ultra-Narrow Band Graphene-Based Surface Plasmon Resonance Refractive Index Sensor for Biochemical Applications and Environmental Monitoring," Plasmonics, pp.1-12, 2024.

DOI: 10.1007/s11468-024-02372-8

[2] R. Kumar, M. Singh, L. Garia, B. Patel, Mridula, and B. Singh, "Refractive index sensing–based ultra sensitive black phosphorus configured surface plasmon resonance sensor for the detection of glucose level," Plasmonics, vol. 19, no. 1, pp.203-213, 2024.

DOI: 10.1007/s11468-023-01972-0

[3] Y. Xu, L. Wu, and L. K. Ang, "$\text{MoS}_2$-Based Highly Sensitive Near-Infrared Surface Plasmon Resonance Refractive Index Sensor," IEEE Journal of Selected Topics in Quantum Electronics, vol. 25, no. 2, pp.1-7, 2019.

DOI: 10.1109/JSTQE.2018.2868795

[4] N. Islam, M. Faizul Huq Arif, M. Abu Yousuf, and S. Asaduzzaman, "Highly sensitive open channel based PCF-SPR sensor for analyte refractive index sensing," Results in Physics, vol. 46, p.106266, 2023/03/01/ 2023.

DOI: 10.1016/j.rinp.2023.106266

[5] L. Liu, Z. Liu, Y. Zhang, and S. Liu, "Side-polished D-type fiber SPR sensor for RI sensing with temperature compensation," IEEE Sensors Journal, vol. 21, no. 15, pp.16621-16628, 2021.

DOI: 10.1109/jsen.2021.3080290

[6] L. Zhao, H. Han, Y. Lian, N. Luan, and J. Liu, "Theoretical analysis of all-solid D-type photonic crystal fiber based plasmonic sensor for refractive index and temperature sensing," Optical fiber technology, vol. 50, pp.165-171, 2019.

DOI: 10.1016/j.yofte.2019.03.013

[7] X. Fu, D. Li, Y. Zhang, G. Fu, W. Jin, and W. Bi, "High sensitivity refractive index sensor based on cascaded core-offset splicing NCF-HCF-NCF structure," Optical fiber technology, vol. 68, p.102791, 2022.

DOI: 10.1016/j.yofte.2021.102791

[8] Y. Zheng, X. Yang, W. Feng, and W. Fan, "Optical fiber refractive index sensor based on SMF-TCF-NCF-SMF interference structure," Optik, vol. 226, p.165900, 2021.

DOI: 10.1016/j.ijleo.2020.165900

[9] M. Zhang, G. Zhu, L. Lu, X. Lou, and L. Zhu, "Refractive index sensor based on ultrafine tapered single-mode nocladding single-mode fiber structure," Optical Fiber Technology, vol. 48, pp.297-302, 2019.

DOI: 10.1016/j.yofte.2019.01.008

[10] N. M. Razali et al., "No-core fiber by self-image length optimization for optical based refractive index sensor," Optical Fiber Technology, vol. 74, p.103133, 2022.

DOI: 10.1016/j.yofte.2022.103133

[11] H. Wang et al., "SPR Sensor Based on Cascaded NCF and U-Shaped Multimode Fibers for Simultaneous Detection of Refractive Index and Temperature," IEEE Sensors Journal, 2023.

DOI: 10.1109/jsen.2023.3282657

[12] Z. Huang and B. Wang, "High-performance refractive index sensor by nano-cylindrical surface structure," Surfaces and Interfaces, vol. 31, p.101987, 2022/07/01/ 2022.

DOI: 10.1016/j.surfin.2022.101987

[13] M. Rachana, I. Charles, S. Swarnakar, S. V. Krishna, and S. Kumar, "Recent advances in photonic crystal fiber-based sensors for biomedical applications," Optical Fiber Technology, vol. 74, p.103085, 2022/12/01/ 2022.

DOI: 10.1016/j.yofte.2022.103085

[14] P. Sun et al., "Self-referenced refractive index sensor based on hybrid mode resonances in 2D metal-dielectric grating," Journal of Physics D: Applied Physics, vol. 53, no. 14, p.145101, 2020/01/22 2020.

DOI: 10.1088/1361-6463/ab6624

[15] S. Joseph, S. Sarkar, and J. Joseph, "Grating-Coupled Surface Plasmon-Polariton Sensing at a Flat Metal–Analyte Interface in a Hybrid-Configuration," ACS Applied Materials & Interfaces, vol. 12, no. 41, pp.46519-46529, 2020/10/14 2020.

DOI: 10.1021/acsami.0c12525

[16] Y. Zhao, J. Zhao, and Q. Zhao, "Review of no-core optical fiber sensor and applications," Sensors and Actuators A: Physical, vol. 313, p.112160, 2020.

DOI: 10.1016/j.sna.2020.112160

[17] Y. Feng, H. Li, S. Li, Y. Liu, and X. Meng, "A high-sensitivity SPR refractive index sensor based on no-core fiber with ag-cu composite films," Sensors, vol. 21, no. 21, p.7000, 2021.

DOI: 10.3390/s21217000

[18] J. Yan, A. Zhang, Q. Cheng, W. Li, and C. Sun, "High sensitivity open-cavity Mach-Zehnder interferometer based on no-core fiber for seawater salinity measurement," Optik, vol. 227, p.165954, 2021.

DOI: 10.1016/j.ijleo.2020.165954

[19] W. Yang et al., "High sensitivity refractometer based on a tapered-single mode-no core-single mode fiber structure," Sensors, vol. 19, no. 7, p.1722, 2019.

DOI: 10.3390/s19071722

[20] S. Xu, Z. Wang, H. Yang, S. Jiao, J. Liu, and Z. Shang, "Optimization Design of SNS Sensor Structural Parameters for Battery Expansion Monitoring," Frontiers in Energy Research, vol. 9, p.725458, 2021.

DOI: 10.3389/fenrg.2021.725458

[21] Z. Ding, C. Zhao, T. Lang, and J. Jin, "Fiber refractive index sensor based on surface plasmon resonance with no-core fiber," in 2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 31 July-4 Aug. 2017 2017, pp.1-3.

DOI: 10.1109/CLEOPR.2017.8118671

[22] X. Li, S. C. Warren-Smith, H. Ebendorff-Heidepriem, Y. n. Zhang, and L. V. Nguyen, "Optical Fiber Refractive Index Sensor With Low Detection Limit and Large Dynamic Range Using a Hybrid Fiber Interferometer," Journal of Lightwave Technology, vol. 37, no. 13, pp.2954-2962, 2019.

DOI: 10.1109/JLT.2019.2908023

[23] T. Marippan, N. N. H. Saris, A. I. Mohd Hanafi, and N. Mohd Razali, "Numerical Study of Sensitivity Enhancement in Optical Waveguide Sensor Due to Core Diameter," in Methods and Applications for Modeling and Simulation of Complex Systems, Singapore, F. Hassan, N. Sunar, M. A. Mohd Basri, M. S. A. Mahmud, M. H. I. Ishak, and M. S. Mohamed Ali, Eds., 2024// 2024: Springer Nature Singapore, pp.201-209.

DOI: 10.1007/978-981-99-7243-2_17

[24] A. I. M. Hanafi, N. N. H. Saris, S. M. Idrus, and A. Hamzah, "Sensitivity Performance of Optical Waveguide Sensors with Different Shapes of Cladding Layer for Microplastics Detection," Journal of Physics: Conference Series, vol. 2627, no. 1, p.012006, 2023/10/01 2023.

DOI: 10.1088/1742-6596/2627/1/012006

[25] N. M. Razali and N. N. H. Saris, "Simulation of optical planar waveguide sensor for microplastics detection in water," in 2022 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 2022: IEEE, pp.201-202.

DOI: 10.1109/nusod54938.2022.9894821

[26] G. Xiao et al., "Graphene oxide sensitized no-core fiber step-index distribution sucrose sensor," in Photonics, 2020, vol. 7, no. 4: MDPI, p.101.

DOI: 10.3390/photonics7040101