Interaction of a Contact Resonance of Microspheres with Surface Acoustic Waves
Author(s)
Boechler, Nicholas; Eliason, Jeffrey Kristian; Kumar, Anshuman; Maznev, Alexei; Nelson, Keith Adam; Fang, Nicholas Xuanlai; ... Show more Show less
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We study the interaction of surface acoustic waves (SAWs) with a contact-based vibrational resonance of 1 μm silica microspheres forming a two-dimensional granular crystal adhered to a substrate. The laser-induced transient grating technique is used to excite SAWs and measure their dispersion. The measured dispersion curves exhibit “avoided crossing” behavior due to the hybridization of the SAWs with the microsphere resonance. We compare the measured dispersion curves with those predicted by our analytical model and find excellent agreement. The approach presented can be used to study the contact mechanics and adhesion of micro- and nanoparticles as well as the dynamics of microscale granular crystals.
Date issued
2013-07Department
Massachusetts Institute of Technology. Department of Chemistry; Massachusetts Institute of Technology. Department of Mechanical EngineeringJournal
Physical Review Letters
Publisher
American Physical Society
Citation
Boechler, N., J. K. Eliason, A. Kumar, A. A. Maznev, K. A. Nelson, and N. Fang. “Interaction of a Contact Resonance of Microspheres with Surface Acoustic Waves.” Physical Review Letters 111, no. 3 (July 2013). © 2013 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114