High, Size-Dependent Quality Factor in an Array of Graphene Mechanical Resonators

Nano Letters ◽  
2011 ◽  
Vol 11 (3) ◽  
pp. 1232-1236 ◽  
Author(s):  
Robert A. Barton ◽  
B. Ilic ◽  
Arend M. van der Zande ◽  
William S. Whitney ◽  
Paul L. McEuen ◽  
...  
Keyword(s):  
Quality Factor ◽  
Mechanical Resonators ◽  
Size Dependent

scholarly journals Carbon Nanotubes as Ultrahigh Quality Factor Mechanical Resonators

Nano Letters ◽  
2009 ◽  
Vol 9 (7) ◽  
pp. 2547-2552 ◽  
Author(s):  
Andreas K. Hüttel ◽  
Gary A. Steele ◽  
Benoit Witkamp ◽  
Menno Poot ◽  
Leo P. Kouwenhoven ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Quality Factor ◽  
Mechanical Resonators

Mode coupling and locking of a Π-shaped cantilever resonator using laser-induced asymmetric modulation

2021 ◽  
Author(s):  
Wenyao Luo ◽  
Naikun Gao ◽  
Yanyan Li ◽  
Zhixin Zhao ◽  
Duo Liu
Keyword(s):  
Information Technology ◽  
Quality Factor ◽  
Mode Coupling ◽  
Microelectromechanical Systems ◽  
Mechanical Resonators ◽  
Signal To Noise ◽  
Resonant Frequencies ◽  
Asymmetric Modulation ◽  
Specific Geometry ◽  
Cantilevered Beams

Abstract Mechanical resonators, such as microcantilevers, demonstrate significant potential for use in information technology. Cantilevered beams of various geometries clamped at one end form the most ubiquitous structures in microelectromechanical systems (MEMSs) that support multimode vibration for the detection, conversion, and processing of small signals. In this study, we demonstrate that the potential of these devices can be further extended by utilizing a strategy based on mode coupling and locking induced by asymmetric photothermal modulation. A cantilever was designed to have a Π-shape with a specific geometry such that the resonant frequencies of the two orthogonal modes are close to one another. Additionally, we show that mode coupling between the two modes, which are originally orthogonal to one another, can be achieved through laser-induced photothermal modulation. In particular, the two modes can be parametrically tuned to become degenerate through mode coupling with a significant increase in the quality factor from 112 to 839. This approach is universal and can be extended to improve the detection limits of microresonators in high-dissipation environments with enhanced signal-to-noise ratios.

scholarly journals High quality factor mg-scale silicon mechanical resonators for 3-mode optoacoustic parametric amplifiers

2013 ◽  
Vol 114 (1) ◽  
pp. 014506 ◽  
Author(s):  
F. A. Torres ◽  
P. Meng ◽  
L. Ju ◽  
C. Zhao ◽  
D. G. Blair ◽  
...  
Keyword(s):  
Quality Factor ◽  
High Quality Factor ◽  
Parametric Amplifiers ◽  
Mechanical Resonators ◽  
High Quality

A simple technique to increase the quality factor of micro-mechanical resonators

2009 ◽  
Author(s):  
Ross G. Turnbull ◽  
Mike C. L. Ward ◽  
Steve Collins ◽  
Carl J. Anthony
Keyword(s):  
Quality Factor ◽  
Simple Technique ◽  
Mechanical Resonators

scholarly journals Erratum: CORRIGENDUM: Quantum Limit of Quality Factor in Silicon Micro and Nano Mechanical Resonators

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Shirin Ghaffari ◽  
Saurabh A. Chandorkar ◽  
Shasha Wang ◽  
Eldwin J. Ng ◽  
Chae H. Ahn ◽  
...  
Keyword(s):  
Quality Factor ◽  
Quantum Limit ◽  
Mechanical Resonators
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