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Title: A loss-based, magnetic field sensor implemented in a ferrofluid infiltrated microstructured polymer optical fiber

We report an in-fiber magnetic field sensor based on magneto-driven optical loss effects, while being implemented in a ferrofluid infiltrated microstructured polymer optical fiber. We demonstrate that magnetic field flux changes up to 2000 gauss can be detected when the magnetic field is applied perpendicular to the fiber axis. In addition, the sensor exhibits high polarization sensitivity for the interrogated wavelengths, providing the possibility of both field flux and direction measurements. The underlying physical and guidance mechanisms of this sensing transduction are further investigated using spectrophotometric, light scattering measurements, and numerical simulations, suggesting photonic Hall effect as the dominant physical, transducing mechanism.
Authors:
 [1] ;  [2] ; ; ;  [3] ;  [4] ;  [1]
  1. Foundation for Research and Technology-Hellas (FORTH), Institute of Electronic Structure and Laser (IESL), Heraklion 70013 Greece (Greece)
  2. (DII), University of Parma, Parma 43124 (Italy)
  3. Institute of Photonics and Optical Science (IPOS), School of Physics, The University of Sydney, Sydney (Australia)
  4. Department of Information Engineering (DII), University of Parma, Parma 43124 (Italy)
Publication Date:
OSTI Identifier:
22257719
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPUTERIZED SIMULATION; HALL EFFECT; LIGHT SCATTERING; MAGNETIC FIELDS; MICROSTRUCTURE; OPTICAL FIBERS; POLARIZATION; POLYMERS; SENSORS; SPECTROPHOTOMETRY