Results 11 to 20 of about 23,271,535 (305)
Development of an Interference Filter-Stabilized External-Cavity Diode Laser for Space Applications
Photonics, 2020 The National Time Service Center of China is developing a compact, highly stable, 698 nm external-cavity diode laser (ECDL) for dedicated use in a space strontium optical clock. This article presents the optical design, structural design, and preliminary
Linbo Zhang +6 more
doaj +1 more source
Broadband 1-GHz mid-infrared frequency comb
Light: Science & Applications, 2022 Mid-infrared (MIR) spectrometers are invaluable tools for molecular fingerprinting and hyper-spectral imaging. Among the available spectroscopic approaches, GHz MIR dual-comb absorption spectrometers have the potential to simultaneously combine the high ...
Nazanin Hoghooghi +6 more
doaj +1 more source
Applied Sciences, 2020 The Zeeman shift plays an important role in the evaluation of optical lattice clocks since a strong bias magnetic field is applied for departing Zeeman sublevels and defining a quantization axis.
Xiaotong Lu +4 more
doaj +1 more source
Chip-Scale Ultra-Low Field Atomic Magnetometer Based on Coherent Population Trapping
Sensors, 2021 We report a chip-scale atomic magnetometer based on coherent population trapping, which can operate near zero magnetic field. By exploiting the asymmetric population among magnetic sublevels in the hyperfine ground state of cesium, we observe that the ...
Hyun-Gue Hong +7 more
doaj +1 more source
A chip-scale atomic beam clock
Nature Communications, 2023 Atomic beams are a longstanding technology for atom-based sensors and clocks with widespread use in commercial frequency standards. Here, we report the demonstration of a chip-scale microwave atomic beam clock using coherent population trapping (CPT ...
Gabriela D. Martinez +5 more
doaj +1 more source
A Quantum-Based Microwave Magnetic Field Sensor
Sensors, 2018 In this paper, a quantum-based method for measuring the microwave magnetic field in free space is presented by exploring atomic Rabi resonance in the clock transition of 133Cs.
Hao Shi +5 more
doaj +1 more source
A proof-of-concept model of compact and high-performance 87Sr optical lattice clock for space
AIP Advances, 2021 A compact and robust design of an optical lattice clock with high stability and accuracy is needed for the implementation of optical clocks operating on the space station.
Feng Guo +13 more
doaj +1 more source
[Time standards of nursing in Primary Health Care: an observational study].
Revista da Escola de Enfermagem da U S P, 2016 OBJECTIVE To determine time standards for interventions and activities conducted by nursing professionals in Family Health Units (FHU) in Brazil to substantiate the calculation of work force. METHOD This was an observational study carried out in 27 FHU,
Daiana Bonfim +4 more
semanticscholar +1 more source
CICIoT2023: A Real-Time Dataset and Benchmark for Large-Scale Attacks in IoT Environment
Italian National Conference on Sensors, 2023 Nowadays, the Internet of Things (IoT) concept plays a pivotal role in society and brings new capabilities to different industries. The number of IoT solutions in areas such as transportation and healthcare is increasing and new services are under ...
E. P. Neto +5 more
semanticscholar +1 more source
Chip-scale atomic diffractive optical elements
Nature Communications, 2019 Quantum coherence and the nonlinear properties of atoms are highly useful in optical devices. Here the authors show quantum-optic hybrid platforms in fully integrated chip-scale atomic diffractive optical elements by embedding hot atomic Rb vapor in ...
Liron Stern +4 more
doaj +1 more source