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High-speed high sensitivity magnetic field sensors based on the Faraday effect in iron garnets

Published

Author(s)

M. N. Deeter

Abstract

Recent research demonstrating greater performance of Faraday effect sensors based on iron garnet crystals is described. Bulk crystals are coupled to high-permeability flux concentrators, resulting in an increase in sensitivity of at least two orders of magnitude. Iron garnet films with perpendicular magnetic anisotropy and exploited in an optical waveguide geometry exhibit greater frequency response than bulk crystals. These films also exhibit larger values of saturation Faraday rotation and ideally should exhibit no hysteresis.
Proceedings Title
Proc., Intl. Optical Fiber Sensors Conf.
Issue
11
Conference Dates
May 4-6, 1993
Conference Location
Firenze

Citation

Deeter, M. (1993), High-speed high sensitivity magnetic field sensors based on the Faraday effect in iron garnets, Proc., Intl. Optical Fiber Sensors Conf., Firenze, -1, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=10718 (Accessed April 12, 2024)
Created May 1, 1993, Updated February 17, 2017