Results 21 to 30 of about 3,066,557 (335)

Design and Experiment of Magnetic Antenna Vibration and Noise Reduction System

open access: yesApplied Sciences, 2022
The magnetic antenna can receive extremely weak underwater magnetic signals, and induce the magnetic field intensity which can reach the femto-tesla (fT) level, making it widely used in underwater electromagnetic signal detection.
Sijie Jiang   +5 more
doaj   +1 more source

Characterizing Low-Frequency Qubit Noise

open access: yesPhysical Review Applied, 2023
Fluctuations of the qubit frequencies are one of the major problems to overcome on the way to scalable quantum computers. Of particular importance are fluctuations with the correlation time that exceeds the decoherence time due to decay and dephasing by fast processes. The statistics of the fluctuations can be characterized by measuring the correlators
Filip Wudarski   +4 more
openaire   +2 more sources

Transimpedance Amplifier for Noise Measurements in Low-Resistance IR Photodetectors

open access: yesApplied Sciences, 2023
This paper presents the design and testing of an ultra-low-noise transimpedance amplifier (TIA) for low-frequency noise measurements on low-impedance (below 1 kΩ) devices, such as advanced IR photodetectors.
Krzysztof Achtenberg   +4 more
doaj   +1 more source

Low frequency noise in Si and Si/SiGe/Si PMOSFETs

open access: yesJournal of Telecommunications and Information Technology, 2023
Measurements of 1/f noise in Si and Si0.64Ge0.36 PMOSFETs have been compared with theoretical models of carrier tunnelling into the oxide. Reduced noise is observed in the heterostructure device as compared to the Si control.
Stephen M. Thomas   +7 more
doaj   +1 more source

Four-point probe resistivity noise measurements of GaSb layers [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
This paper concerns measurements and calculations of low frequency noise for semiconductor layers with four-probe electrodes. The measurements setup for the voltage noise cross-correlation method is described.
L. Ciura   +3 more
doaj   +1 more source

Design of multi-channel low phase noise synchronous frequency source

open access: yesDianzi Jishu Yingyong, 2021
In order to meet the requirement of high stability frequency source when DRFM(Digital Radio Frequency Memory) system collects external input signals, a design method of multi-channel, low phase noise synchronous frequency source based on two-stage PLL is
Xu Wei, Pan Minghai, Zhang Yanjing
doaj   +1 more source

Low frequency noise-dark current correlations in HgCdTe infrared photodetectors.

open access: yesOptics Express, 2020
In this paper, low frequency noise and dark current correlation is investigated as a function of reverse bias and temperature for short-wave infrared (SWIR), mid-wave infrared (MWIR), and long-wave infrared (LWIR) HgCdTe homo-junction photodetectors ...
Liqi Zhu   +6 more
semanticscholar   +1 more source

Low-frequency charge noise in Si/SiGe quantum dots [PDF]

open access: yesPhysical review B, 2019
Electron spins in silicon have long coherence times and are a promising qubit platform. However, electric field noise in semiconductors poses a challenge for most single- and multi-qubit operations in quantum-dot spin qubits.
Elliot J. Connors   +4 more
semanticscholar   +1 more source

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