Magnetic-field sensor based on whisperinggallery modes in a photonic crystal fiber infiltrated with magnetic fluid

Aseel Mahmood; Vishnu Kavungal; Sudad S. Ahmed; Gerald Farrell; Yuliya Semenova

doi:10.1364/OL.40.004983

Magnetic-field sensor based on whisperinggallery modes in a photonic crystal fiber infiltrated with magnetic fluid

Aseel Mahmood, Vishnu Kavungal, Sudad S. Ahmed, Gerald Farrell, Yuliya Semenova

School of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

In this work, a magnetic-field sensor was designed to take advantage of the tunability of the resonance wavelengths of a cylindrical whispering-gallery-mode microresonator. The microresonator is based on a 1.3 cm length of photonic crystal fiber infiltrated with a magnetic fluid containing nanoparticles with diameters of either 5 or 10 nm. The Q-factor achieved for the microresonators was 4.24 × 10³ or higher. When a magnetic field is applied, the whispering- gallery-mode resonances shift toward longer wavelengths. The experimentally demonstrated sensitivity of the proposed sensor was as high as 110 pm/mT in the magnetic field range from 0 to 38.7 mT.

Original language	English
Pages (from-to)	4683-4986
Number of pages	304
Journal	Optics Letters
Volume	40
Issue number	21
DOIs	https://doi.org/10.1364/OL.40.004983
Publication status	Published - 1 Nov 2015

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title = "Magnetic-field sensor based on whisperinggallery modes in a photonic crystal fiber infiltrated with magnetic fluid",

abstract = "In this work, a magnetic-field sensor was designed to take advantage of the tunability of the resonance wavelengths of a cylindrical whispering-gallery-mode microresonator. The microresonator is based on a 1.3 cm length of photonic crystal fiber infiltrated with a magnetic fluid containing nanoparticles with diameters of either 5 or 10 nm. The Q-factor achieved for the microresonators was 4.24 × 103 or higher. When a magnetic field is applied, the whispering- gallery-mode resonances shift toward longer wavelengths. The experimentally demonstrated sensitivity of the proposed sensor was as high as 110 pm/mT in the magnetic field range from 0 to 38.7 mT.",

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AU - Mahmood, Aseel

AU - Kavungal, Vishnu

AU - Ahmed, Sudad S.

AU - Farrell, Gerald

AU - Semenova, Yuliya

PY - 2015/11/1

Y1 - 2015/11/1

N2 - In this work, a magnetic-field sensor was designed to take advantage of the tunability of the resonance wavelengths of a cylindrical whispering-gallery-mode microresonator. The microresonator is based on a 1.3 cm length of photonic crystal fiber infiltrated with a magnetic fluid containing nanoparticles with diameters of either 5 or 10 nm. The Q-factor achieved for the microresonators was 4.24 × 103 or higher. When a magnetic field is applied, the whispering- gallery-mode resonances shift toward longer wavelengths. The experimentally demonstrated sensitivity of the proposed sensor was as high as 110 pm/mT in the magnetic field range from 0 to 38.7 mT.

AB - In this work, a magnetic-field sensor was designed to take advantage of the tunability of the resonance wavelengths of a cylindrical whispering-gallery-mode microresonator. The microresonator is based on a 1.3 cm length of photonic crystal fiber infiltrated with a magnetic fluid containing nanoparticles with diameters of either 5 or 10 nm. The Q-factor achieved for the microresonators was 4.24 × 103 or higher. When a magnetic field is applied, the whispering- gallery-mode resonances shift toward longer wavelengths. The experimentally demonstrated sensitivity of the proposed sensor was as high as 110 pm/mT in the magnetic field range from 0 to 38.7 mT.

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Magnetic-field sensor based on whisperinggallery modes in a photonic crystal fiber infiltrated with magnetic fluid

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