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Field Demonstration of Distributed Quantum Sensing without Post-Selection
Physical Review X, 2021 Distributed quantum sensing can provide quantum-enhanced sensitivity beyond the shot-noise limit (SNL) for sensing spatially distributed parameters. To date, distributed quantum sensing experiments have mostly been accomplished in laboratory environments
Si-Ran Zhao +14 more
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The IASI NH3 version 4 product: averaging kernels and improved consistency [PDF]
Atmospheric Measurement Techniques, 2023 Satellite measurements play an increasingly important role in the study of atmospheric ammonia (NH3). Here, we present version 4 of the Artificial Neural Network for IASI (ANNI; IASI: Infrared Atmospheric Sounding Interferometer) retrieval of NH3.
L. Clarisse +11 more
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Micromachines, 2023 In recent years, the nitrogen-vacancy (NV) center in diamonds has been demonstrated to be a high-performance multiphysics sensor, where a lock-in amplifier (LIA) is often adopted to monitor photoluminescence changes around the resonance.
Qidi Hu +5 more
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Polar stratospheric nitric acid depletion surveyed from a decadal dataset of IASI total columns [PDF]
Atmospheric Chemistry and Physics, 2022 In this paper, we exploit the first 10-year data record (2008–2017) of nitric acid (HNO3) total columns measured by the IASI-A/MetOp infrared sounder, characterized by an exceptional daily sampling and a good vertical sensitivity in the lower-to-mid ...
C. Wespes +7 more
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A High-Sensitivity Resonant Magnetic Sensor Based on Graphene Nanomechanical Resonator
Micromachines, 2022 This paper presents a novel resonant magnetic sensor consisting of a graphene nanomechanical oscillator and magnetostrictive stress coupling structure, using Si/SiO2 substrate and Fe–Ga alloy, respectively.
Wenyao Liu +6 more
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Ethylene industrial emitters seen from space
Nature Communications, 2022 Combining 13 years of satellite measurements led to the discovery of 300 global hotspots of atmospheric ethylene (C2H4). They are found to be linked to heavy industries and megacities, and are currently misrepresented in emission inventories.
Bruno Franco +5 more
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Sensors, 2021 In order to improve the precision and beam quality of a pump laser for a spin exchange relaxation free inertial measurement device, we applied one scheme to achieve the square wave modulation and power stability control of the pump laser and another one ...
Jian Hao +3 more
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All-Optical Tuning of Fano Resonance for Quasi-BIC and Terahertz Sensing Applications
Applied Sciences, 2022 The bound states in the continuum (BIC) support anomalous resonances in the optical or terahertz band with a theoretically infinite quality factor. Therefore, it has great application prospects in the field of sensors.
Wenyao Liu +7 more
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npj Quantum Information, 2022 The quantum Cramér–Rao bound sets a fundamental limit on the accuracy of unbiased parameter estimation in quantum systems, relating the uncertainty in determining a parameter to the inverse of the quantum Fisher information. We experimentally demonstrate
Min Yu +10 more
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On the weekly cycle of atmospheric ammonia over European agricultural hotspots
Scientific Reports, 2022 The presence of a weekly cycle in the abundance of an atmospheric constituent is a typical fingerprint for the anthropogenic nature of its emission sources. However, while ammonia is mainly emitted as a consequence of human activities, a weekly cycle has
Martin Van Damme +7 more
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