Home

Spin detection with a micromechanical trampoline: Towards magnetic resonance microscopy harnessing cavity optomechanics


  Ran Fischer  ,  Dylan P. McNally  ,  Chris Reetz  ,  Gabriel G. T. Assumpcao  ,  Thomas R. Knief  ,  Yiheng Lin  ,  Cindy A. Regal  
 Rafael Ltd.
JILA, National Institute of Standards and Technology and University of Colorado, and Department of Physics, University of Colorado, Boulder

We explore prospects and benefits of combining the techniques of cavity optomechanics with efforts to image spins using magnetic resonance force microscopy. In particular, we focus on high-stress stoichiometric silicon nitride (Si3N4) films as a promising ultra-high-force-sensitivity detector.  We present an initial demonstration of force-detected electron spin resonance using a high-Q trampoline-design resonator, at a level of 0.1 fN.  And we provide ideas for future impacts of membrane cavity optomechanical devices on MRFM of nuclear spins.

 

[1] R. Fischer, D. P. McNally, C. Reetz et al., “Spin detection with a micromechanical trampoline: Toward magnetic resonance microscopy harnessing cavity optomechanics”, arXiv:1811.05718