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arXiv · 1108.2617

Spectroscopy of mechanical dissipation in micro-mechanical membranes

Andreas Jöckel·Matthew T. Rakher·Maria Korppi·Stephan Camerer·David Hunger·Matthias Mader·Philipp Treutlein
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Abstract

We measure the frequency dependence of the mechanical quality factor (Q) of SiN membrane oscillators and observe a resonant variation of Q by more than two orders of magnitude. The frequency of the fundamental mechanical mode is tuned reversibly by up to 40% through local heating with a laser. Several distinct resonances in Q are observed that can be explained by coupling to membrane frame modes. Away from the resonances, the background Q is independent of frequency and temperature in the measured range.

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Andreas Jöckel, Matthew T. Rakher, Maria Korppi, Stephan Camerer, David Hunger, Matthias Mader, Philipp Treutlein. 2011-08-12. Spectroscopy of mechanical dissipation in micro-mechanical membranes. https://doi.org/10.1063/1.3646914

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