Efficient optomechanical mode-shape mapping of micromechanical devices

David Hoch; Kevin-Jeremy Haas; Leopold Moller; Timo Sommer; Pedro Soubelet; Jonathan Finley; Menno Poot

doi:10.3390/mi12080880

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arXiv · 2105.07853

Efficient optomechanical mode-shape mapping of micromechanical devices

David Hoch·Kevin-Jeremy Haas·Leopold Moller·Timo Sommer·Pedro Soubelet·Jonathan Finley·Menno Poot

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Abstract

We demonstrate a method to optically map multiple modes of mechanical structures simultaneously. The fast and robust method, based on a modified phase-lock-loop, is demonstrated on a silicon nitride membrane and compared with three different approaches. Line traces and two-dimensional maps of different modes are acquired. The high quality enables us to determine the weights of individual contributions in superpositions of degenerate modes.

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David Hoch, Kevin-Jeremy Haas, Leopold Moller, Timo Sommer, Pedro Soubelet, Jonathan Finley, Menno Poot. 2021-05-06. Efficient optomechanical mode-shape mapping of micromechanical devices. https://doi.org/10.3390/mi12080880

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