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Conference Paper
Optical Sensors
Monterey, California United States
June 24-28, 2012
ISBN: 1-55752-947-7
Micro and Nano-Engineered Sensors (STu4F)

Cavity Optomechanical Magnetometer

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


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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 OSA

OCIS Codes
(230.3810) Optical devices : Magneto-optic systems
(140.3948) Lasers and laser optics : Microcavity devices

E. Sheridan, S. Forstner, J. Knittel, H. Rubinsztein-Dunlop, and W. P. Bowen, "Cavity Optomechanical Magnetometer," in Imaging and Applied Optics Technical Papers, OSA Technical Digest (online) (Optical Society of America, 2012), paper STu4F.5.

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