Abstract:Nonlinear effects have become an important issue in microacoustic component development to improve performance. In addition to the modeling, simulations and electrical characterization tools, a direct method for observing the nonlinear vibration fields in these components would be beneficial in the device design. We use laser probing for studying the nonlinear acoustic behavior in two square-extensional (SE) mode MEMS resonators, whose electrically measured SE-resonances compress above a certain, unexpectedly … Show more
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