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Proceedings Paper

Magnetic field sensors and visualizers using magnetic photonic crystals
Author(s): Mikhail Vasiliev; Kamal E. Alameh; Viatcheslav Kotov
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Paper Abstract

Magneto-optical imaging is widely used to observe the domain patterns in magnetic materials, visualize defects in ferromagnetic objects, and measure the spatial distribution of stray magnetic fields. Optimized 1D magneto-photonic crystals enable a significant increase in the sensitivity of magneto-optical sensors. The properties of such devices based on the optimized reflection (doubled Faraday rotation) mode and the use of 1D magnetic photonic crystals as sensors are discussed. Experimental results of the fabrication and characterization of ferrite-garnet layers possessing uniaxial magnetic anisotropy are shown, and an optimized film structure suitable for magneto-optical imaging is proposed.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70045D (16 May 2008); doi: 10.1117/12.785561
Show Author Affiliations
Mikhail Vasiliev, Electron Science Research Institute (Australia)
Kamal E. Alameh, Electron Science Research Institute (Australia)
Viatcheslav Kotov, Institute of Microtechnology - Spin MT (Russia)


Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors

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