High-Q Nanomechanics via Destructive Interference of Elastic Waves

Details High-Q Nanomechanics via Destructive Interference of Elastic Waves High-Q Nanomechanics via Destructive Interference of Elastic Waves

2010-10-11

arxiv.org/abs/1010.2171v1

Phys. Rev. Lett. 106, 047205 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.106.047205

Mechanical dissipation poses an ubiquitous challenge to the performance of nanomechanical devices. Here we analyze the support-induced dissipation of high-stress nanomechanical resonators. We develop a model for this loss mechanism and test it on silicon nitride membranes with circular and square geometries. The measured Q-values of different harmonics present a non-monotonic behavior which is successfully explained. For azimuthal harmonics of the circular geometry we predict that destructive interference of the radiated waves leads to an exponential suppression of the clamping loss in the harmonic index. Our model can also be applied to graphene drums under high tension.

Affiliated with

Also associated with

No associations

Rating

High-Q Nanomechanics via Destructive Interference of Elastic Waves does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with High-Q Nanomechanics via Destructive Interference of Elastic Waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-Q Nanomechanics via Destructive Interference of Elastic Waves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-659089