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Conferences > Sensors > 2012 > STu4F > STu4F.5

Cavity Optomechanical Magnetometer

Eoin Sheridan, Stefan Forstner, Joachim Knittel, Halina Rubinsztein-Dunlop, and Warwick P. Bowen

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Abstract

We demonstrate a cavity optomechanical magnetometer where the magnetic-field induced expansion of a magnetostrictive material is transduced onto a highly-compliant optical microresonator. The resulting motion is read out optically with nanoTesla per root Hertz sensitivity.

© 2012 Optical Society of America

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