Tunable, broadband nonlinear nanomechanical resonator

Hanna Cho; Min Feng Yu; Alexander F. Vakakis; Lawrence A. Bergman; D. Michael McFarland

doi:10.1021/nl100480y

Tunable, broadband nonlinear nanomechanical resonator

Hanna Cho, Min Feng Yu, Alexander F. Vakakis, Lawrence A. Bergman, D. Michael McFarland

Research output: Contribution to journal › Article › peer-review

Abstract

A nanomechanical resonator incorporating intrinsically geometric nonlinearity and operated in a highly nonlinear regime is modeled and developed. The nanoresonator is capable of extreme broadband resonance, with tunable resonance bandwidth up to many times its natural frequency. Its resonance bandwidth and drop frequency (the upper jump-down frequency) are found to be very sensitive to added mass and energy dissipation due to damping. We demonstrate a prototype nonlinear mechanical nanoresonator integrating a doubly clamped carbon nanotube and show its broadband resonance over tens of MHz (over 3 times its natural resonance frequency) and its sensitivity to femtogram added mass at room temperature.

Original language	English (US)
Pages (from-to)	1793-1798
Number of pages	6
Journal	Nano letters
Volume	10
Issue number	5
DOIs	https://doi.org/10.1021/nl100480y
State	Published - May 12 2010

Keywords

Broadband resonance
Carbon nanotube
Nanoresonator
Nonlinear resonance
Responsivity

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

Online availability

10.1021/nl100480y

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abstract = "A nanomechanical resonator incorporating intrinsically geometric nonlinearity and operated in a highly nonlinear regime is modeled and developed. The nanoresonator is capable of extreme broadband resonance, with tunable resonance bandwidth up to many times its natural frequency. Its resonance bandwidth and drop frequency (the upper jump-down frequency) are found to be very sensitive to added mass and energy dissipation due to damping. We demonstrate a prototype nonlinear mechanical nanoresonator integrating a doubly clamped carbon nanotube and show its broadband resonance over tens of MHz (over 3 times its natural resonance frequency) and its sensitivity to femtogram added mass at room temperature.",

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AU - Cho, Hanna

AU - Yu, Min Feng

AU - Vakakis, Alexander F.

AU - Bergman, Lawrence A.

AU - McFarland, D. Michael

PY - 2010/5/12

Y1 - 2010/5/12

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AB - A nanomechanical resonator incorporating intrinsically geometric nonlinearity and operated in a highly nonlinear regime is modeled and developed. The nanoresonator is capable of extreme broadband resonance, with tunable resonance bandwidth up to many times its natural frequency. Its resonance bandwidth and drop frequency (the upper jump-down frequency) are found to be very sensitive to added mass and energy dissipation due to damping. We demonstrate a prototype nonlinear mechanical nanoresonator integrating a doubly clamped carbon nanotube and show its broadband resonance over tens of MHz (over 3 times its natural resonance frequency) and its sensitivity to femtogram added mass at room temperature.

KW - Broadband resonance

KW - Carbon nanotube

KW - Nanoresonator

KW - Nonlinear resonance

KW - Responsivity

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Tunable, broadband nonlinear nanomechanical resonator

Abstract

Keywords

ASJC Scopus subject areas

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