Abstract
We used a supercontinuum-based scanning white-light interferometer to characterize the oscillation of a MEMS device. The output of a commercially available supercontinuum light source (FiberWare Ilum II USB) was modulated to achieve stroboscopic operation. By synchronizing the modulation frequency of the source to the sample oscillation, dynamic 3-D profile measurements were recorded. These results were validated against those obtained with a white light LED setup. The measured maximum deflection of a microbridge driven with 0–6.8 V sinusoidal voltage at 10 Hz was (supercontinuum), which agreed with the LED measurement. The method shows promise for characterization of high-frequency MEMS devices.
©2012 Optical Society of America
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