Optical Fiber Probe Based on Localized Surface Plasmon Resonance of Gold Nanostructures for Chemical Sensing

Amin Moslemi, Lucia Sansone, Flavio Esposito, Carlos Marques, Carlos Marques, Stefania Campopiano, Michele Giordano, Agostino Iadicicco

2025

Abstract

In this study, we present an experimental investigation of highly sensitive optical fiber sensors utilizing localized surface plasmon resonance (LSPR), achieved by depositing gold nanoparticles (NP) onto uncladded silica multi-mode fiber. This setup takes advantage of the unique optical characteristics of optical fiber sensors and plasmonic resonance provided by gold NPs. The experimental results demonstrated a maximum sensitivity of about 130 nm/RIU in water solution, for an LSPR wavelength at 560 nm. As a study case, the sensor was used to detect Thiram, a common agricultural pesticide, exhibiting a wide detection range from 10 nM to 100 µM, with a significant wavelength shift up to 4 nm. Moreover, a preliminary study involving the use of nanostar-based optical fiber sensors is comparatively provided. The highest sensitivity makes this approach highly promising for a range of applications, including environmental monitoring, biomedical diagnostics, and chemical detection.

Paper Citation

in Harvard Style

Moslemi A., Sansone L., Esposito F., Marques C., Campopiano S., Giordano M. and Iadicicco A. (2025). Optical Fiber Probe Based on Localized Surface Plasmon Resonance of Gold Nanostructures for Chemical Sensing. In Proceedings of the 13th International Conference on Photonics, Optics and Laser Technology - Volume 1: AOMatDev; ISBN 978-989-758-736-8, SciTePress, pages 157-162. DOI: 10.5220/0013395000003902

in Bibtex Style

@conference{aomatdev25,
author={Amin Moslemi and Lucia Sansone and Flavio Esposito and Carlos Marques and Stefania Campopiano and Michele Giordano and Agostino Iadicicco},
title={Optical Fiber Probe Based on Localized Surface Plasmon Resonance of Gold Nanostructures for Chemical Sensing},
booktitle={Proceedings of the 13th International Conference on Photonics, Optics and Laser Technology - Volume 1: AOMatDev},
year={2025},
pages={157-162},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013395000003902},
isbn={978-989-758-736-8},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 13th International Conference on Photonics, Optics and Laser Technology - Volume 1: AOMatDev
TI - Optical Fiber Probe Based on Localized Surface Plasmon Resonance of Gold Nanostructures for Chemical Sensing
SN - 978-989-758-736-8
AU - Moslemi A.
AU - Sansone L.
AU - Esposito F.
AU - Marques C.
AU - Campopiano S.
AU - Giordano M.
AU - Iadicicco A.
PY - 2025
SP - 157
EP - 162
DO - 10.5220/0013395000003902
PB - SciTePress