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Microwave Power Imaging with Ferromagnetic Films Incorporated in Bimaterial Cantilevers

Published

Author(s)

Thomas Mitchell (Mitch) Wallis, John M. Moreland, Billy F. Riddle, Pavel Kabos

Abstract

We report an imaging technique that uses ferromagnetic films incorporated in bimaterial cantilevers for spatially resolved calorimetric detection of microwaves emitted by sources of high frequency (4 to 20 GHz) radiation. The ferromagnetic film absorbs microwave power via eddy currents within the film and, in the presence of a biasing magnetic field, via ferromagnetic resonance. The resultant heating of the bimaterial cantilever leads to deflection that is detected by a laser beam-bounce method. Comparison of images acquired with and without a biasing magnetic field reveals sensitivity to the normal and tangential components of the magnetic field.
Citation
Journal of Magnetism and Magnetic Materials

Keywords

Fe alloys, ferromagnetic resonance, magnetic resonance free microscopy microwave.

Citation

Wallis, T. , Moreland, J. , Riddle, B. and Kabos, P. (2004), Microwave Power Imaging with Ferromagnetic Films Incorporated in Bimaterial Cantilevers, Journal of Magnetism and Magnetic Materials, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=31677 (Accessed May 18, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created October 31, 2004, Updated October 12, 2021