Proceedings (Apr 2024)

A Comprehensive Characterization Procedure for Resonant MEMS Scanning Mirrors

  • Clement Fleury,
  • Markus Bainschab,
  • Gianluca Mendicino,
  • Roberto Carminati,
  • Pooja Thakkar,
  • Dominik Holzmann,
  • Sara Guerreiro,
  • Adrien Piot

DOI
https://doi.org/10.3390/proceedings2024097144
Journal volume & issue
Vol. 97, no. 1
p. 144

Abstract

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We demonstrate an experimental assessment of a high-Q, high-angle piezoelectric (2 µm PZT) MEMS scanning micromirror featuring distributed backside reinforcement, suitable for applications demanding energy-efficient and high-quality image projection. Frequency response measurements at 10 different vacuum levels ranging from atmospheric pressure to 10−6 mbar allow for the quantitative separation of damping mechanisms (air and structural). Stroboscopic digital holographic microscopy was used to assess the static and dynamic deformation of the mirror surface. The experimental results are in good agreement with simulations and models.

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