DIELECTRIC TRANSDUCTION OF NANOMECHANICAL SYSTEMS
Any polarizable object exposed to an inhomogeneous field will experience a force. We employ this simple concept as an innovative and highly efficient scheme to transduce nanomechanical resonators by a dielectric gradient force generated by electrodes located beneath the resonator. Not only is the described method local and integrable, it is also scalable to large bandwith and does not require any beam metallization which might introduce extra dissipation. (Click here to read more)
Unterreithmeier et al., Nature 458, 1001 (2009).
and press release (in German) or (in English)
ELECTROMECHANICAL CHARGE SHUTTLE
SEM image of a vibrating nanopillar in an array of pillars etched from a GaAs wafer.