We present a microelectromechanical system, in which a silicon beam is attached to a comb-drive actuator, which is used to tune the tension in the silicon beam and thus its resonance frequency. By measuring the resonance frequencies of the system, we show that the comb-drive actuator and the silicon beam behave as two strongly coupled resonators. Interestingly, the effective coupling rate (∼1.5 MHz) is tunable with the comb-drive actuator (+10%) as well as with a side-gate (−10%) placed close to the silicon beam. In contrast, the effective spring constant of the system is insensitive to either of them and changes only by ±0.5%. Finally, we show that the comb-drive actuator can be used to switch between different coupling rates with a frequency of at least 10 kHz.
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3 October 2016
Research Article|
October 04 2016
Tunable mechanical coupling between driven microelectromechanical resonators
G. J. Verbiest
;
G. J. Verbiest
1JARA-FIT and 2nd Institute of Physics,
RWTH Aachen University
, 52074 Aachen, Germany
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D. Xu;
D. Xu
1JARA-FIT and 2nd Institute of Physics,
RWTH Aachen University
, 52074 Aachen, Germany
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M. Goldsche;
M. Goldsche
1JARA-FIT and 2nd Institute of Physics,
RWTH Aachen University
, 52074 Aachen, Germany
2
Peter Grünberg Institute (PGI-8/9)
, Forschungszentrum Jülich, 52425 Jülich, Germany
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T. Khodkov;
T. Khodkov
1JARA-FIT and 2nd Institute of Physics,
RWTH Aachen University
, 52074 Aachen, Germany
2
Peter Grünberg Institute (PGI-8/9)
, Forschungszentrum Jülich, 52425 Jülich, Germany
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S. Barzanjeh;
S. Barzanjeh
3Institute for Quantum Information,
RWTH Aachen University
, 52056 Aachen, Germany
4
Institute of Science and Technology Austria
, 3400 Klosterneuburg, Austria
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N. von den Driesch;
N. von den Driesch
2
Peter Grünberg Institute (PGI-8/9)
, Forschungszentrum Jülich, 52425 Jülich, Germany
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D. Buca
;
D. Buca
2
Peter Grünberg Institute (PGI-8/9)
, Forschungszentrum Jülich, 52425 Jülich, Germany
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C. Stampfer
C. Stampfer
1JARA-FIT and 2nd Institute of Physics,
RWTH Aachen University
, 52074 Aachen, Germany
2
Peter Grünberg Institute (PGI-8/9)
, Forschungszentrum Jülich, 52425 Jülich, Germany
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Appl. Phys. Lett. 109, 143507 (2016)
Article history
Received:
July 15 2016
Accepted:
September 20 2016
Citation
G. J. Verbiest, D. Xu, M. Goldsche, T. Khodkov, S. Barzanjeh, N. von den Driesch, D. Buca, C. Stampfer; Tunable mechanical coupling between driven microelectromechanical resonators. Appl. Phys. Lett. 3 October 2016; 109 (14): 143507. https://doi.org/10.1063/1.4964122
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