Photonic crystal fiber injected with Fe3O4 nanofluid for magnetic field detection

We report a magnetic field sensor having advantages of both photonic crystal fiber and optofluidics, combining them on a single platform by infiltrating small amount of Fe3O4 magnetic optofluid/nanofluid in cladding holes of polarization-maintaining photonic crystal fiber. We demonstrated that magne...

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Bibliographic Details
Published in:Applied physics letters 2011-10, Vol.99 (16)
Main Authors: Thakur, Harneet V., Nalawade, Sandipan M., Gupta, Swati, Kitture, Rohini, Kale, S. N.
Format: Article
Language:English
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Summary:We report a magnetic field sensor having advantages of both photonic crystal fiber and optofluidics, combining them on a single platform by infiltrating small amount of Fe3O4 magnetic optofluid/nanofluid in cladding holes of polarization-maintaining photonic crystal fiber. We demonstrated that magnetic field of few mT can be easily and very well detected with higher sensitivity of 242 pm/mT. The change in the birefringence values has been correlated to the response of nanofluid to applied field.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3651490