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Photonic crystal slot cavities are designed with Q up to 2×106. Strong field confinement allows for significant gradient optical force actuation. Measured devices show high extinction ratio and mechanical resonance at low optical driving power.
A brand new photonic platform for nanomechanical systems integration is proposed . We are able to overcome all these difficulties of current NEMS by harnessing optical force for device transduction and using integrated photonic circuit for interconnects.
We analyze the effect of spatial mode beating on optical forces in coupled waveguide resonators. Continuous sign and amplitude change is achieved through optical phase tuning. Competing force components are decomposed via optical mode expansion.
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