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Rapid and sensitive magnetic field sensor based on photonic crystal fiber with magnetic fluid infiltrated nanoholes

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Azad, Saeed, Mishra, Satyendra Kumar, Rezaei, Ghasem, Izquierdo, Ricardo et Ung, Bora. 2022. « Rapid and sensitive magnetic field sensor based on photonic crystal fiber with magnetic fluid infiltrated nanoholes ». Scientific Reports, vol. 12, nº 1.

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Abstract

A fast response time (0.1 s) magnetic field sensor has been demonstrated utilizing a photonic crystal fiber with nano-size air holes infiltrated with polyethylene glycol based magnetic fluid. The effect of magnetic nanoparticles concentration in the fluid on the magneto-optical sensor performance and its dependence under varying magnetic-field loads was investigated in detail. In particular, the sensor response was analytically modelled with a Langevin function with a good fit (R≥0.996). A threshold sensing point as low as 20 gauss was recorded and a detection range of 0–350 gauss was demonstrated by means of optical transmission measurements. The experimental results were validated by theory using a waveguide light transmission model fed by finite-element method simulations of the principal guided modes in the infiltrated fiber sensor. The simple interrogation scheme, high sensitivity and quick response time makes the proposed hybrid fiber-optic magneto-fluidic probe a promising platform for novel biochemical sensing applications.

Item Type: Peer reviewed article published in a journal
Professor:
Professor
Izquierdo, Ricardo
Ung, Bora
Affiliation: Génie électrique, Génie électrique
Date Deposited: 11 Jul 2022 19:08
Last Modified: 25 Jul 2022 18:10
URI: https://espace2.etsmtl.ca/id/eprint/24892

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