Institute of Nano Electronic Engineering

Universiti Malaysia Perlis

  • Facebook
  • Instagram
  • Twitter
  • YouTube
  • About Us
    • Background
    • Mission and Vision
    • Organization
    • Client’s Charter
    • Corporate Video
    • Our Expertise
    • Acknowledgement
    • Brochures
  • Academics
    • Master of Science
    • Doctor of Philosophy
    • Postgraduate Students
    • Alumni
  • Research
    • Research Activities
      • Research Areas
      • Research Focus
      • Research Projects
        • Products
      • Collaborations
      • Publications
        • Scoreboard
    • Research Facilities
  • Contact Us
    • Staff Directory
    • Feedback
  • Gallery
    • Video
    • Audio
  • Download
    • Archive
    • Publications
    • Forms
    • OBE Awareness
    • Reports
  • Quick Links
    • Support Links
    • FAQ
    • Sitemap
    • Faculty
    • Other Departments
    • Events
You are here: Home / Publications / A gold nanoparticles coated unclad single mode fiber-optic sensor based on localized surface plasmon resonance

A gold nanoparticles coated unclad single mode fiber-optic sensor based on localized surface plasmon resonance

June 10, 2023 By Editor

Abstract – In the last few decays, the fiber-optic was employed in the field of sensing because of its benefits in contrast to other types of sensors such as small size, easy to fabricate, high response, and flexibility. In this study, unclad single mode fiber-optic sensor is proposed to operate at 650 nm wavelength. COMSOL Multiphysics 5.1 finite element method (FEM) is used to design the sensor and tested it theoretically. The middle portion of the fiber cladding is removed and replaced by gold nanoparticles (Au NPs) of 50 nm thickness. Analytic layer of 3 μm thickness was immersed in different liquids in range of refractive index (RI) from 1.000281 to 1.39. These liquids are NaCl Deionized (DI) water solution, sucrose-Deionized (DI) water solution, and glycerol solution Deionized (DI) water. It was found that the highest obtained sensitivity and resolution are for glycerol-DI water solution with value of 3157.98 (nm/RIU) and 3.16 × 10–5 (RIU), respectively. Furthermore, it is easy to fabricate and of low cost. In experiments, pulsed laser ablation (PLA) was used to prepare Au NPs. X-ray diffraction (XRD) shown that the peak of the intensity grew as the ablated energy increased as well as the structure crystallization. Transmission electron microscopy (TEM) revealed an average diameter of 30 nm at the three ablated energies, while X-ray spectroscopy (EDX) spectrum has indicated the presence of Au NPs in the prepared solution. The photoluminescence (PL) and ultraviolet–visible UV–Vis transmission were used to study the optical properties of the prepared Au NPs. An optical spectrum analyzer was used to obtain the sensor’s output results. It has shown that best intensity was obtained for sucrose which confined with theoretical results.

Corresponding Author: Prof. Dr. Subash C B Gopinath
Corresponding Author’s Email: subash@unimap.edu.my

Download Abstract: PDF
Link to Publication: https://doi.org/10.1038/s41598-023-32852-6

Share this:

  • Click to share on Facebook (Opens in new window) Facebook
  • Click to share on X (Opens in new window) X
  • Click to share on Pinterest (Opens in new window) Pinterest
  • Click to email a link to a friend (Opens in new window) Email
  • More
  • Click to share on Reddit (Opens in new window) Reddit
  • Click to share on LinkedIn (Opens in new window) LinkedIn
  • Click to share on WhatsApp (Opens in new window) WhatsApp
  • Click to print (Opens in new window) Print
  • Click to share on Telegram (Opens in new window) Telegram

Filed Under: Publications Tagged With: Gold nanoparticles

NEWS @ INEE

  • NanoRoadshow Biotech Exploration – STI 100 Scientists: 100 Schools: 100 Days MOSTI
  • Visit to the Faculty of Science and Trace Analysis and Biosensor COE, Prince of Songkla University
  • Visit and Collaborative Discussion Between INEE, Walailak University, Thailand, and Maejo University Chiang Mai, Thailand
  • Visit by Malaysian Bioeconomy Development Corporation (Bioeconomy Corporation)
  • Staff Retirement Appreciation Ceremony

EVENTS & ACTIVITIES

  • INEE Nano Roadshow – Series 4
  • NanoBiosensor Workshop 2024
  • Invitation To Nanobiosensor Workshop 2024
  • NANO ROADSHOW @ PSNCWU
  • STEM With Community at FESTKON UniMAP 2023
Privacy Policy | Security Policy | Disclaimer | Sitemap | FAQ | Feedback | User Guide | Download | Postgraduate

Institute of Nano Electronic Engineering, Universiti Malaysia Perlis
Lot 106, 108 & 110, Blok A, Taman Pertiwi Indah,
Jalan Kangar-Alor Setar, Seriab 01000 Kangar, Perlis, Malaysia
Tel: +604-979 8581 Fax: +604-979 8578 Email: webmaster.inee@unimap.edu.my

Copyright © INEE UniMAP

  • Facebook
  • Instagram
  • Twitter
  • YouTube

For best view, please use latest version of Internet Explorer, Mozilla Firefox and Google Chrome with resolution 1280 x 768 and above.

BioNexus Partners (BNP)

QS 5 Stars

myGov

Logo UniMAP

Designed by Mohd Isa from Portal Kerjaya & Sumber Rujukan Malaysia

  • Bahasa Melayu