Carbon nanotubes enhancement of fiber Bragg grating surface plasmon resonance sensor

In this research, a telecommunication standard fiber Bragg grating is sputtered with a 45 nm gold film to obtain surface plasmon resonance. Carbon nanotubes are deposited over the gold layer for sensitivity enhancement due to its unique chemical and optical properties. The developed sensor is interr...

Full description

Bibliographic Details
Main Authors: Thirunavakkarasu, Punithavathi, Khan, Abdul Ali, Shabaneh, Arafat, Saidin, Norazlina, Sulaiman, Muhammad Syahnizam, Muhammad Noor, Ahmad Shukri
Format: Conference or Workshop Item
Published: IEEE 2023
Online Access:http://psasir.upm.edu.my/id/eprint/44204/
Description
Summary:In this research, a telecommunication standard fiber Bragg grating is sputtered with a 45 nm gold film to obtain surface plasmon resonance. Carbon nanotubes are deposited over the gold layer for sensitivity enhancement due to its unique chemical and optical properties. The developed sensor is interrogated with a broad-spectrum light source and spectrophotometer setup in the visible region and the sensing performance is analyzed. The sensor showed high sensitivity of 526 nm/RIU which was more than 4 time higher than a sensor without the carbon nanotubes enhancement. This shows great promise in the application of CNTs and possibly other sensitive nanomaterials as sensing enhancements of future sensing using optical fibers.