Magnetic field sensors and visualizers using magnetic photonic crystals

Mikhail Vasiliev; Kamal E. Alameh; Viatcheslav Kotov

doi:10.1117/12.785561

16 May 2008 Magnetic field sensors and visualizers using magnetic photonic crystals

Mikhail Vasiliev, Kamal E. Alameh, Viatcheslav Kotov

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70045D (2008) https://doi.org/10.1117/12.785561
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

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.

Citation Download Citation

Mikhail Vasiliev, Kamal E. Alameh, and Viatcheslav Kotov "Magnetic field sensors and visualizers using magnetic photonic crystals", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70045D (16 May 2008); https://doi.org/10.1117/12.785561

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