and parametric amplification
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2021 ◽  
Vol 27 (2) ◽  
pp. 1-11
Author(s):  
Dong Wu ◽  
Li Shen ◽  
Haonan Ren ◽  
Meng Huang ◽  
Cosimo Lacava ◽  
...  


OSA Continuum ◽  
2020 ◽  
Vol 3 (11) ◽  
pp. 3289
Author(s):  
Gao-Feng Jiao ◽  
Qiang Wang ◽  
L. Q. Chen ◽  
Weiping Zhang ◽  
Chun-Hua Yuan


2020 ◽  
Vol 124 (17) ◽  
Author(s):  
Xiaojie Zuo ◽  
Zhihui Yan ◽  
Yanni Feng ◽  
Jingxu Ma ◽  
Xiaojun Jia ◽  
...  


2020 ◽  
Vol 13 (2) ◽  
Author(s):  
A.V. Semenov ◽  
I.A. Devyatov ◽  
M.P. Westig ◽  
T.M. Klapwijk


2020 ◽  
Vol 28 (5) ◽  
pp. 6378
Author(s):  
Zohreh Seyedrezaei ◽  
Behzad Rejaei ◽  
Mohammad Memarian


2020 ◽  
Vol 22 (2) ◽  
pp. 023009
Author(s):  
Mahsa Zakeri ◽  
Scott M Keller ◽  
Yuanxun Ethan Wang ◽  
Christopher S Lynch


2019 ◽  
Vol 9 (22) ◽  
pp. 4845 ◽  
Author(s):  
Sepideh Naserbakht ◽  
Andreas Naesby ◽  
Aurélien Dantan

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.



Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 3954 ◽  
Author(s):  
Rugved Likhite ◽  
Aishwaryadev Banerjee ◽  
Apratim Majumder ◽  
Mohit Karkhanis ◽  
Hanseup Kim ◽  
...  

We present the design, fabrication, and response of a polymer-based Laterally Amplified Chemo-Mechanical (LACM) humidity sensor based on mechanical leveraging and parametric amplification. The device consists of a sense cantilever asymmetrically patterned with a polymer and flanked by two stationary electrodes on the sides. When exposed to a humidity change, the polymer swells after absorbing the analyte and causes the central cantilever to bend laterally towards one side, causing a change in the measured capacitance. The device features an intrinsic gain due to parametric amplification resulting in an enhanced signal-to-noise ratio (SNR). Eleven-fold magnification in sensor response was observed via voltage biasing of the side electrodes without the use of conventional electronic amplifiers. The sensor showed a repeatable and recoverable capacitance change of 11% when exposed to a change in relative humidity from 25–85%. The dynamic characterization of the device also revealed a response time of ~1 s and demonstrated a competitive response with respect to a commercially available reference chip.



Author(s):  
Rugved Likhite ◽  
Aishwaryadev Banerjee ◽  
Apratim Majumder ◽  
Mohit Karkhanis ◽  
Hanseup Kim ◽  
...  

We present the design, fabrication, and response of a polymer-based Laterally Amplified Chemo-Mechanical (LACM) humidity sensor based on mechanical leveraging and parametric amplification. The device consists of a sense cantilever asymmetrically patterned with a polymer and flanked by two stationary electrodes on the sides. When exposed to a humidity change, the polymer swells after absorbing the analyte and causes the central cantilever to bend laterally towards one side, causing a change in the measured capacitance. The device features an intrinsic gain due to parametric amplification resulting in an enhanced signal-to-noise ratio (SNR). 11-fold magnification in sensor response was observed via voltage biasing of the side electrodes without the use of conventional electronic amplifiers. The sensor showed a repeatable and recoverable capacitance change of 11% when exposed to a change in relative humidity from 25-85%. The dynamic characterization of the device also revealed a response time ~1s and demonstrated a competitive response with respect to a commercially available reference chip.



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