M. Pruessner, Doewon Park, D. Kozak, T. Stievater, W. Rabinovich
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Effective index tuning in micro-opto-mechanical structures using gradient electric forces
We demonstrate a new device architecture enabling large effective index tuning in a highly-evanescent waveguide interacting with a suspended microbridge. Using gradient electric forces, we actuate the microbridge to induce dynamic phase shifts Δφ>π at low electrical power.