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Novel bulk iron garnets for magneto-optic magnetic field sensing

Published

Author(s)

M. N. Deeter, S. Milianbon, Gordon W. Day, G. Diercks, S. Samuelson

Abstract

We report measurements of the magneto-optic response function and frequency response for three bulk iron garnet crystals grown by a flux technique. The samples were the product of an intensive effort to develop iron garnet compositions with properties specifically optimized for magnetic field sensing. Sensitivity enhancement was achieved through both bismuth substitution (for increasing the saturation Faraday rotation) and gallium substitution (for reducing the saturation magnetization). One sample exhibited a value of magneto-optic sensitivity of 25°/mT for 1.3 υm light. Frequency response measurements indicate that bismuth substitution actually improves performance (compared to unsubstituted yttrium iron garnet) in contrast with gallium, which causes substantial degradation.
Proceedings Title
Proc., IEEE Trans. Magn., 6th Joint Magnetism and Magnetic Materials Intl. Mag. Conf., Albuquerque, NM,
Volume
30
Issue
6
Conference Dates
June 20-23, 1994
Conference Location
Albuquerque, NM, US

Citation

Deeter, M. , Milianbon, S. , Day, G. , Diercks, G. and Samuelson, S. (1994), Novel bulk iron garnets for magneto-optic magnetic field sensing, Proc., IEEE Trans. Magn., 6th Joint Magnetism and Magnetic Materials Intl. Mag. Conf., Albuquerque, NM,, Albuquerque, NM, US, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=1943 (Accessed June 20, 2024)

Issues

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Created October 31, 1994, Updated October 12, 2021