Speaker
Mark Freeman
(University of Alberta)
Description
An optomechanically-based magnetic resonance spectrometer will be described. The demonstration of inductive detection of nuclear spin precession, in 1945, launched magnetic resonance spectroscopy as a general-purpose tool. As a complement to this, the precession of magnetic dipoles can be choreographed to yield an AC mechanical torque on a torsion sensor. Optical transduction of mechanical displacement then replaces a measurement of current induced by electromotive force. Circumstances in which torque observations can increase the sensitivity of general-purpose magnetic resonance spectroscopy will be discussed.
Work performed in collaboration with J Losby, F Fani Sani, D Grandmont, Z Diao, M Belov, J Burgess, S Compton, W Hiebert, D Vick, K Mohammad, E Salimi, G Bridges, D Thomson. We are grateful for support from NSERC, NINT, AITF, and CRC.
Primary author
Mark Freeman
(University of Alberta)
