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Large-area low-noise flexible organic photodiodes for detecting faint visible light
Science, 2020Low-noise organic photodetectors Although the high performance and low cost of visible light silicon photodetectors suffice for most applications, their small size and rigid nature are not optimal for applications such as wearable sensors.
C. Fuentes-Hernandez +7 more
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A piezoelectric AlN MEMS hydrophone with high sensitivity and low noise density
, 2020This paper presents a micromachined hydrophone with high sensitivity and low noise density. The hydrophone is composed of a 10by10 piezoelectric aluminum nitride (AlN) membrane array, a low noise amplification circuit, and packaged by an acoustic ...
Dengfei Yang +10 more
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An ultralow noise preamplifier for low frequency noise measurements
Review of Scientific Instruments, 2009Low frequency noise measurements are among the most sensitive tools for the investigation of the quality and of the reliability of semiconductor devices. The sensitivity that can be obtained depends on the background noise of the low noise preamplifier coupled to the device under test (DUT) that, at very low frequencies, is dominated by flicker noise ...
CANNATA', GIANLUCA +2 more
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Low-frequency noise in low 1/f noise dc SQUID’s
Applied Physics Letters, 1986We demonstrate that the low-frequency noise in our edge junction dc superconducting quantum interference devices, with a basic 1/f flux noise of 2×10−12 Φ20/Hz at 1 Hz, can all be accounted for in terms of junction critical current fluctuations. A novel modulation readout scheme is able to cancel the effect of junction critical current fluctuations and
V Foglietti +6 more
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A Ka-Band Phase-Compensated Variable-Gain CMOS Low-Noise Amplifier
IEEE Microwave and Wireless Components Letters, 2019A variable-gain low-noise amplifier implemented in a 65-nm CMOS process for a beamforming front-end chip is presented, of which the phase remains constant during gain variations.
Seungchan Lee +2 more
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A Low-Noise, Low-Power Amplifier With Current-Reused OTA for ECG Recordings
IEEE Transactions on Biomedical Circuits and Systems, 2018This paper presents a low-power and low-noise capacitive-feedback amplifier with a current-reused OTA for ECG recordings. To improve the noise-power efficiency, the proposed OTA employs a current-reused architecture, which adopts an inverter-based ...
Jie Zhang +3 more
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The Journal of the Acoustical Society of America, 1985
A practical method of computation is described for making periodic signals V(t) which have a given frequency spectrum and which minimize the variance 〈(V2−〈V〉2)2〉 in power as a function of time. These signals can be used to measure the spectral response of a system (the transfer function): They represent a significant improvement over traditional ...
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A practical method of computation is described for making periodic signals V(t) which have a given frequency spectrum and which minimize the variance 〈(V2−〈V〉2)2〉 in power as a function of time. These signals can be used to measure the spectral response of a system (the transfer function): They represent a significant improvement over traditional ...
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A Wideband 2–5 GHz Noise Canceling Subthreshold Low Noise Amplifier
IEEE Transactions on Circuits and Systems - II - Express Briefs, 2018This brief presents an energy efficient wideband low noise amplifier (LNA) operating in subthreshold regime. Wideband matching and low noise figure in subthreshold domain is achieved by using a gate inductor-assisted impedance matching and a current ...
A. Kumar, B. Sahoo, A. Dutta
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Mixed Noise Removal in Hyperspectral Image via Low-Fibered-Rank Regularization
IEEE Transactions on Geoscience and Remote Sensing, 2020The tensor tubal rank, defined based on the tensor singular value decomposition (t-SVD), has obtained promising results in hyperspectral image (HSI) denoising.
Yu-Bang Zheng +5 more
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