Near-field integration of a SiN nanobeam and a SiO${}_2$ microcavity for Heisenberg-limited displacement sensing

Ryan Schilling, Hendrik Schütz, Amir Ghadimi +3

Placing a nanomechanical object in the evanescent near-field of a high-$Q$ optical microcavity gives access to strong gradient forces and quantum-noise-limited displacement readout…