Optomechanical magnetometer with nano-Tesla sensitivity

We demonstrate an optomechanical magnetometer based on microtoroidal resonators that combines the giant magnetostriction of Terfenol-D with the ultrahigh optical transduction sensitivity of microtoroids and achieves detection sensitivities in the range of nT Hz -1/2 .

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Bibliographische Detailangaben
Hauptverfasser:	Forstner, S., Prams, S., van Ooijen, E. D., Swaim, J. D., Knittel, J., Harris, G. I., Szorkovszky, A., Rubinszstein-Dunlop, H., Bowen, W. P.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Magnetometers Magnetostriction Optical fibers Sensitivity Toroidal magnetic fields
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Beschreibung
Zusammenfassung:	We demonstrate an optomechanical magnetometer based on microtoroidal resonators that combines the giant magnetostriction of Terfenol-D with the ultrahigh optical transduction sensitivity of microtoroids and achieves detection sensitivities in the range of nT Hz -1/2 .
DOI:	10.1109/IQEC-CLEO.2011.6193969