Abstract

In this paper, we design, fabricate and evaluate a resonant micro-mirror able to amplify the vibration amplitude using parametric amplification. In addition, the spring constant of torsion bars supporting the micro-mirror can be varied by stress generated using an electrothermal actuator, which can tune the resonant frequency of the torsional modes. The parametric amplification of the vibration of the torsional mode is demonstrated by applying a pumping signal using the electrothermal actuator.

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