Nonlinear Mode-Coupling in Nanomechanical Systems

Understanding and controlling nonlinear coupling between vibrational modes is critical for the development of advanced nanomechanical devices; it has important implications for applications ranging from quantitative sensing to fundamental research. However, achieving accurate experimental characterization of nonlinearities in nanomechanical systems (NEMS) is problematic. Currently employed detection and actuation schemes themselves tend to be highly nonlinear, and this unrelated nonlinear response has been inadvertently convolved into many previous measurements. In this Letter we describe an experimental protocol and a highly linear transduction scheme, specifically designed for NEMS, that enables accurate, in situ characterization of device nonlinearities. By comparing predictions from Euler-Bernoulli theory for the intra- and intermodal nonlinearities of a doubly clamped beam, we assess the validity of our approach and find excellent agreement.


Publié dans:
Nano Letters, 13, 4, 1622-1626
Année
2013
ISSN:
1530-6984
Mots-clefs:
Note:
Roukes, ML CALTECH, Kavli Nanosci Inst, Pasadena, CA 91125 USA CALTECH, Kavli Nanosci Inst, Pasadena, CA 91125 USA CALTECH, Kavli Nanosci Inst, Pasadena, CA 91125 USA CALTECH, Dept Phys, Pasadena, CA 91125 USA CALTECH, Dept Appl Phys, Pasadena, CA 91125 USA CALTECH, Dept Bioengn, Pasadena, CA 91125 USA Univ Melbourne, Dept Math & Stat, Melbourne, Vic 3010, Australia, 125OO, Times Cited:2, Cited References Count:30
Laboratoires:




 Notice créée le 2013-08-06, modifiée le 2018-03-17


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