Photonic crystal fiber injected with Fe{sub 3}O{sub 4} nanofluid for magnetic field detection

Journal Article · Mon Oct 17 00:00:00 EDT 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3651490· OSTI ID:22027776

Thakur, Harneet V; Nalawade, Sandipan M; Gupta, Swati ^[1]; Kitture, Rohini ^[2]; Kale, S N ^[3]

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1. Photonics Group, Department of Applied Physics, Defence Institute of Advanced Technology, Girinagar, Pune 411 025 (India)
2. Department of Electronic-Science, Fergusson College, Pune 411 004 (India)
3. Nanotechnology Group, Department of Applied Physics, Defence Institute of Advanced Technology, Girinagar, Pune 411 025 (India)

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 Fe{sub 3}O{sub 4} 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.

• OSTI ID: 22027776
• Journal Information: Applied Physics Letters, Vol. 99, Issue 16; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BIREFRINGENCE
CRYSTALS
DETECTION
FERRITES
FIBERS
FLUIDS
IRON OXIDES
MAGNETIC FIELDS
POLARIZATION
SENSITIVITY
SENSORS