Note: Optical filter method for high-resolution magnetostriction measurement using fiber Bragg grating under millisecond-pulsed high magnetic fields at cryogenic temperatures

Abstract

High-resolution magnetostriction measurement of $\Delta L/L\sim 10^{-6}$ at a speed of 5 MHz is performed, using optical filter method as the detection scheme for the fiber Bragg grating (FBG) based strain monitor is performed under 35-millisecond pulsed high magnetic fields up to 45 T at 2.2 K. The resolution of magnetostriction is about the same order as the conventionally reported value from FBG based magnetostriction measurement systems for millisecond pulsed magnetic fields. The measurement speed is $\sim$100 times the conventional ones. Present system can be a faster alternative for the conventional FBG based magnetostriction measurement system for millisecond pulsed high magnetic fields.

arXiv comment3 pages, 3 figures

References in corpus (7)

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• One-Third Magnetization Plateau with a Preceding Novel Phase in Volborthite
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• Mechanism of spin crossover in LaCoO3 resolved by shape magnetostriction in pulsed magnetic fields
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