scholarly journals Stress-Controlled Frequency Tuning and Parametric Amplification of the Vibrations of Coupled Nanomembranes

2019 ◽  
Vol 9 (22) ◽  
pp. 4845 ◽  
Author(s):  
Sepideh Naserbakht ◽  
Andreas Naesby ◽  
Aurélien Dantan
Keyword(s):  
Frequency Tuning ◽  
Thermal Fluctuations ◽  
Parametric Amplification ◽  
Parametric Oscillation ◽  
Piezoelectric Actuation ◽  
Resonance Frequencies ◽  
Piezoelectric Control ◽  
And Parametric Amplification ◽  
Oscillation Threshold ◽  
Threshold Regime

Noninvasive tuning of the mechanical resonance frequencies of suspended parallel nanomembranes in various monolithic arrays is achieved by piezoelectric control of their tensile stress. Parametric amplification of their thermal fluctuations is shown to be enhanced by the piezoelectric actuation and amplification factors of up to 20 dB in the sub-parametric oscillation threshold regime are observed.

scholarly journals Quantum Interferometer Combining Squeezing and Parametric Amplification

2020 ◽  
Vol 124 (17) ◽  
Author(s):  
Xiaojie Zuo ◽  
Zhihui Yan ◽  
Yanni Feng ◽  
Jingxu Ma ◽  
Xiaojun Jia ◽  
...  
Keyword(s):  
Parametric Amplification ◽  
Quantum Interferometer ◽  
And Parametric Amplification

scholarly journals Frequency Tuning in Inductive Power Transfer Systems

Electronics ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 527
Author(s):  
Manuele Bertoluzzo ◽  
Giuseppe Buja
Keyword(s):  
Electric Vehicle ◽  
Power Supply ◽  
Frequency Tuning ◽  
The Other ◽  
Experimental Setup ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Resonance Frequencies ◽  
Power Transfer Efficiency ◽  
Inductive Power

Inductive power transfer systems (IPTSs) systems are equipped with compensation networks that resonate at the supply frequency with the inductance of the transmitting and receiving coils to both maximize the power transfer efficiency and reduce the IPTS power sizing. If the network and coil parameters differ from the designed values, the resonance frequencies deviate from the supply frequency, thus reducing the IPTS efficiency. To cope with this issue, two methods of tuning the IPTS supply frequency are presented and discussed. One method is aimed at making resonant the impedance seen by the IPTS power supply, the other one at making resonant the impedance of the receiving stage. The paper closes by implementing the first method in an experimental setup and by testing its tuning capabilities on a prototypal IPTS used for charging the battery of an electric vehicle.

scholarly journals Wavelength conversion and parametric amplification of optical pulses via quasi-phase-matched four-wave mixing in long-period Bragg silicon waveguides

2014 ◽  
Vol 39 (13) ◽  
pp. 4017 ◽  
Author(s):  
S. Lavdas ◽  
S. Zhao ◽  
J. B. Driscoll ◽  
R. R. Grote ◽  
R. M. Osgood ◽  
...  
Keyword(s):  
Wavelength Conversion ◽  
Four Wave Mixing ◽  
Parametric Amplification ◽  
Wave Mixing ◽  
Optical Pulses ◽  
Silicon Waveguides ◽  
Long Period ◽  
And Parametric Amplification

Temperature frequency tuning of parametric amplification in single-mode fibers

1985 ◽  
Author(s):  
J. P. Pocholle ◽  
J. Raffy ◽  
M. Papuchon
Keyword(s):  
Frequency Tuning ◽  
Single Mode ◽  
Parametric Amplification

Forbidden bifurcations and parametric amplification in a Josephson-junction array

1993 ◽  
Vol 48 (4) ◽  
pp. 2569-2574 ◽  
Author(s):  
Steve Nichols ◽  
Kurt Wiesenfeld
Keyword(s):  
Josephson Junction ◽  
Parametric Amplification ◽  
Josephson Junction Array ◽  
Junction Array ◽  
And Parametric Amplification

Frequency Tuning Characteristics of Multi-Layered Micro-Resonators Using Thermal and Piezoelectric Actuation

2006 ◽  
Vol 324-325 ◽  
pp. 647-650
Author(s):  
Il Kwon Oh ◽  
Dong Hyun Kim
Keyword(s):  
Thermal Loading ◽  
Frequency Tuning ◽  
Plane Deformation ◽  
Initial Imperfection ◽  
Piezoelectric Actuation ◽  
Natural Modes ◽  
Nonlinear Responses ◽  
Geometric Nonlinear ◽  
Out Of Plane ◽  
Selection Of

Frequency tuning characteristics of the multi-layered micro-resonators have been extensively investigated by using thermal and piezoelectric actuations. Based on the layerwise displacement theory and geometric nonlinear formulation, the nonlinear deformation and its attendant vibration characteristics of un-symmetrically deposited camped-camped micro-beams under piezoelectric and thermal actuations have been analyzed. The effects of the eccentric piezoelectric actuation and uniform thermal loading on the large deflection and natural modes were discussed with respect to geometric nonlinear responses and initial imperfection. Present results show that both piezoelectric and thermal actuations can effectively tune the resonant frequencies as increasing and decreasing desired values by the alternative selection of the dominance between in-plane deformation and out-of-plane deformation.

Light-activated self-generation and parametric amplification for MEMS oscillators

2001 ◽  
Author(s):  
Maxim Zalalutdinov ◽  
Alan T. Zehnder ◽  
Anatoli Olkhovets ◽  
Stephen W. Turner ◽  
Lidija Sekaric ◽  
...  
Keyword(s):  
Parametric Amplification ◽  
Mems Oscillators ◽  
And Parametric Amplification
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