Title :
Optomechanical magnetometer with nano-Tesla sensitivity
Author :
Forstner, S. ; Prams, S. ; van Ooijen, E.D. ; Swaim, J.D. ; Knittel, J. ; Harris, G.I. ; Szorkovszky, A. ; Rubinszstein-Dunlop, H. ; Bowen, W.P.
Author_Institution :
Sch. of Math. & Phys., Univ. of Queensland, St. Lucia, QLD, Australia
fDate :
Aug. 28 2011-Sept. 1 2011
Abstract :
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.
Keywords :
fibre optic sensors; magnetic sensors; magnetometers; magnetostriction; magnetostrictive devices; micro-optomechanical devices; micromechanical resonators; microsensors; Terfenol-D; detection sensitivities; giant magnetostriction; microtoroidal resonators; microtoroids; nano-Tesla sensitivity; optomechanical magnetometer; ultrahigh optical transduction sensitivity; Magnetometers; Magnetostriction; Optical fibers; Sensitivity; Toroidal magnetic fields;
Conference_Titel :
Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4577-1939-4
DOI :
10.1109/IQEC-CLEO.2011.6193969
