Jun 13 – 19, 2015
University of Alberta
America/Edmonton timezone
Welcome to the 2015 CAP Congress! / Bienvenue au congrès de l'ACP 2015!

Magnetic Resonance Spectroscopy with Torsional Optomechanics

Jun 18, 2015, 8:45 AM
CCIS L2-200 (University of Alberta)

CCIS L2-200

University of Alberta

Invited Speaker / Conférencier invité Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) R1-1 Optomechanics -- minisymposium I (DCMMP-DAMOPC) / Optomécanique -- minisymposium I (DPMCM-DPAMPC)


Mark Freeman (University of Alberta)


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)

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