Results 1 to 10 of about 14,448,705 (337)
Photonic chip-based low-noise microwave oscillator. [PDF]
Nature, 2023 Numerous modern technologies are reliant on the low-phase noise and exquisite timing stability of microwave signals. Substantial progress has been made in the field of microwave photonics, whereby low-noise microwave signals are generated by the down ...
Kudelin I +31 more
europepmc +3 more sources
Ensemble-SINDy: Robust sparse model discovery in the low-data, high-noise limit, with active learning and control [PDF]
Proceedings of the Royal Society A, 2021 Sparse model identification enables the discovery of nonlinear dynamical systems purely from data; however, this approach is sensitive to noise, especially in the low-data limit. In this work, we leverage the statistical approach of bootstrap aggregating
Urban Fasel +3 more
semanticscholar +1 more source
Low-noise GaAs quantum dots for quantum photonics [PDF]
Nature Communications, 2020 Quantum dots are both excellent single-photon sources and hosts for single spins. This combination enables the deterministic generation of Raman-photons—bandwidth-matched to an atomic quantum-memory—and the generation of photon cluster states, a resource
L. Zhai +8 more
semanticscholar +1 more source
Particles, 2021 Tomography based on cosmic muon absorption is a rising technique because of its versatility and its consolidation as a geophysics tool over the past decade. It allows us to address major societal issues such as long-term stability of natural and man-made
Ignacio Lázaro Roche
doaj +1 more source
An aerosol deposition based MEMS piezoelectric accelerometer for low noise measurement
Microsystems & Nanoengineering, 2023 Potentially applied in low-noise applications such as structural health monitoring (SHM), a 1-axis piezoelectric MEMS accelerometer based on aerosol deposition is designed, fabricated, simulated, and measured in this study.
Xuewen Gong +4 more
semanticscholar +1 more source
Low-noise frequency-agile photonic integrated lasers for coherent ranging
Nature Communications, 2022 Frequency modulated continuous wave laser ranging (FMCW LiDAR) enables distance mapping with simultaneous position and velocity information, is immune to stray light, can achieve long range, operate in the eye-safe region of 1550 nm and achieve high ...
G. Lihachev +12 more
semanticscholar +1 more source
Design and Experiment of Magnetic Antenna Vibration and Noise Reduction System
Applied 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
Physics-Based Noise Modeling for Extreme Low-Light Photography [PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2021 Enhancing the visibility in extreme low-light environments is a challenging task. Under nearly lightless condition, existing image denoising methods could easily break down due to significantly low SNR.
Kaixuan Wei +3 more
semanticscholar +1 more source
A low-noise photonic heterodyne synthesizer and its application to millimeter-wave radar
Nature Communications, 2021 Microwave photonics offers transformative capabilities for ultra-wideband electronic signal processing and frequency synthesis with record-low phase noise levels.
E. Kittlaus +6 more
semanticscholar +1 more source
Applied Sciences, 2021 In this paper, a low-power and low-noise readout circuit for resistive-bridge microsensors is presented. The chopper-stabilized, recycling folded cascode current-feedback instrumentation amplifier (IA) is proposed to achieve the low-power, low-noise, and
Gyuri Choi +7 more
doaj +1 more source