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Proceedings Paper

Thermal energy loss mechanisms in micro- to nano-scale devices
Author(s): A. E. Duwel; Jeff Lozow; Christopher J. Fisher; Terese Phillips; Roy H. Olsson; Marc Weinberg
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Paper Abstract

In micro- and nano-scale resonators, a key performance metric is the quality factor (Q), which is the ratio of stored mechanical energy to the energy dissipated. In well-optimized designs, Q is limited by thermal physics and specific energy loss mechanisms including thermoelastic, Akhieser, and Landau-Rumer damping. The relative importance of each effect depends on the time and length scales dominating the device. Most published analyses focus on special regimes where only one mechanism dominates, though real devices may operate in regimes that are not the limiting case. This paper presents thermal damping across the range of frequency and length scales. Data on acoustic loss is compared with theory.

Paper Details

Date Published: 13 May 2011
PDF: 14 pages
Proc. SPIE 8031, Micro- and Nanotechnology Sensors, Systems, and Applications III, 80311C (13 May 2011); doi: 10.1117/12.885130
Show Author Affiliations
A. E. Duwel, The Charles Stark Draper Lab. (United States)
Jeff Lozow, The Charles Stark Draper Lab. (United States)
Christopher J. Fisher, The Charles Stark Draper Lab. (United States)
Terese Phillips, The Charles Stark Draper Lab. (United States)
Roy H. Olsson, Sandia National Labs. (United States)
Marc Weinberg, The Charles Stark Draper Lab. (United States)


Published in SPIE Proceedings Vol. 8031:
Micro- and Nanotechnology Sensors, Systems, and Applications III
Thomas George; M. Saif Islam; Achyut K. Dutta, Editor(s)

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