@article{11695,
  author = {Ran Fischer and D McNally and Chris Reetz and Gabriel Assumpção and T. Knief and Y Lin and Cindy Regal},
  title = {Spin detection with a micromechanical trampoline: towards magnetic resonance microscopy harnessing cavity optomechanics},
  abstract = {We explore the prospects and benefits of combining the techniques of cavity optomechanics with efforts to image spins using magnetic resonance force microscopy (MRFM). In particular, we focus on a common mechanical resonator used in cavity optomechanics—high-stress stoichiometric silicon nitride (Si3N4) membranes. We present experimental work with a 'trampoline' membrane resonator that has a quality factor above 106 and an order of magnitude lower mass than a comparable standard membrane resonators. Such high-stress resonators are on a trajectory to reach 0.1 aN / √Hz  force sensitivities at MHz frequencies by using techniques such as soft clamping and phononic-crystal control of acoustic radiation in combination with cryogenic cooling. We present a demonstration of force-detected electron spin resonance of an ensemble at room temperature using the trampoline resonators functionalized with a magnetic grain. We discuss prospects for combining such a resonator with an integrated Fabry–Perot cavity readout at cryogenic temperatures, and provide ideas for future impacts of membrane cavity optomechanical devices on MRFM of nuclear spins.},
  year = {2019},
  journal = {New Journal of Physics},
  volume = {21},
  pages = {043049},
  month = {2019-04},
  url = {https://iopscience.iop.org/article/10.1088/1367-2630/ab117a/meta},
  doi = {10.1088/1367-2630/ab117a},
}