Spectral Domain Magneto-Optical Magnetometry

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Abstract:

In this work we present a new concept for measuring high intensity pulsed magnetic fields (h (t)) through the spectral analysis of spin excitations in a saturated yttrium-iron garnet (YIG) thin film grown on a gadolinium gallium garnet (GGG) substrate. The spectrum of spin excitations, generated in the sample by picosecond h (t), was determined with the help of a magnetooptical (MO) Faraday probe in the guided wave regime of lightwave propagation. This technique, compared to the standard MO cells, allows one to avoid saturation effects because the amplitude of h (t) is measured in the frequency domain, and allows us to realize the analysis in real time taking advantage of strong a MO signal.

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Periodical:

Solid State Phenomena (Volume 190)

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373-376

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Online since:

June 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] D. Robbes. Highly sensitive magnetometers-a review. Sensors and Actuators, A. Vol. 129 (2006) p. p.86–93.

DOI: 10.1016/j.sna.2005.11.023

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[2] A.G. Gurevich G.A. Melkov. Magnetization Oscillations and Waves. Taylor & Francis, Inc. (2000) 456 p.

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