A5100391180- Atomic and Subatomic Physics Research
- Advanced Frequency and Time Standards
- Quantum optics and atomic interactions
- Geophysics and Sensor Technology
- Frequency Control in Power Systems
- Electric Motor Design and Analysis
- Physics of Superconductivity and Magnetism
- Adipose Tissue and Metabolism
- Mechanical and Optical Resonators
- Quantum, superfluid, helium dynamics
- Magnetic properties of thin films
- Cancer, Stress, Anesthesia, and Immune Response
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Phonocardiography and Auscultation Techniques
- Dark Matter and Cosmic Phenomena
- Advanced Fiber Laser Technologies
- Seismic Waves and Analysis
- Stress Responses and Cortisol
- Characterization and Applications of Magnetic Nanoparticles
- Inertial Sensor and Navigation
- Geophysics and Gravity Measurements
- Laser-Matter Interactions and Applications
- Magnetic Properties and Applications
- Endoplasmic Reticulum Stress and Disease
- Mass Spectrometry Techniques and Applications
Huazhong University of Science and Technology
2020-2024
Tongji Hospital
2023-2024
Wuhan National Laboratory for Optoelectronics
2023
Beihang University
2021
University of Chinese Academy of Sciences
2019-2020
Shanghai Institute of Optics and Fine Mechanics
2020
Chinese Academy of Sciences
2020
Key Laboratory of Guangdong Province
2017
Sun Yat-sen University
2017
For conventional HTS synchronous generator, the superconducting (SC) field windings or armature are rotating, which could complicate their industrial feasibility for offshore wind generation. In order to overcome this drawback, a kind of double-stator flux modulation generator (HTS-DSFMG) without rotating is proposed. This paper compares electromagnetic performance 10-MW generators with two different topologies, i.e., iron-cored stators both and coils, air-cored stator windings. addition,...
Superconducting (SC) machines are one of the best candidates for large-scale direct-drive wind power generation because its high torque density. In a traditional SC synchronous machine, either armature windings or field need to rotate, which makes structure machine complicated. To solve this problem, temperature superconducting (HTS) double stator flux modulation (DSFM) was proposed. and placed in outer inner stator, respectively, works through effect by reluctance rotor. Due effect, there...
Spin-dependent exotic interactions can be generated by exchanging hypothetical bosons, which were introduced to solve some puzzles in physics. Many precision experiments have been performed search for such interactions, but no confirmed observation has made. Here, we propose new the spin-spin that mediated axions or Z$^\prime$ bosons. A sensitive functionalized cantilever is utilized as a force sensor measure between spin-polarized electrons periodic magnetic source structure and closed-loop...
Using diagnostic imaging, asymmetry in the mechanic of left and right lungs has been discovered unilateral lung disease. Unilateral disease might affect information interaction between two lungs, which is often neglected study function. In this paper, twenty-one subjects were recruited to collect bio-impedance respiratory signals lungs. The differences correlation amplitude combined verify three types respiration movement: symmetry (RS), type I (T1RA), II (T2RA). We extracted coefficient,...
Broad-dynamic-range magnetometers are demanded in practical applications and fundamental research. We experimentally demonstrate a parametrically modulated atomic magnetometer with large dynamic range by taking advantage of the high-order resonance effects. With increase strength modulation field, both low-order resonances well resolved used to measure DC or AC magnetic fields. The demonstrated sensitivity based on zeroth-order is 1.5 pT/Hz, those below 3 making measurement high fields...
This paper presents a high-sensitivity microelectromechanical system (MEMS) gravimeter that can operate without vacuum chamber for long-term earth tide observations. The proposed MEMS be greatly simplified, including spring-mass acceleration unit and controlled temperature environment. To the chamber, effect of air buoyancy on output signal is investigated corrected in time domain. A strong correlation between theoretical tidal observed. shows an ultra-low noise floor ~2 µGal/√Hz at 1 Hz...
This paper reports a MEMS gravimeter enabling simultaneous gravity measurements in both horizontal and vertical directions by combining two sensors with an identical low-frequency linear spring structure. The proposed paired experimentally demonstrate ultra-low self-noise floors of < 2 μGal/√Hz@1 Hz. assembled successfully measures long-term Earth tides signals high sensitivity stability, showing the potential for three-axis measurements.
With a classical trajectory Monte Carlo model, we systematically study the laser intensity and field amplitude ratio dependence of nonsequential double ionization by counter-rotating two-color circularly polarized fields (800 1600[Formula: see text]nm). The results show that optimized changes with intensity, which is attributed to shift most probable electron returning intensity. Moreover, intensity-dependent probability curve shows remarkable dip in transition region between sequential...
Micrometer-sized magnetic particles have been widely used in force microscopy, resonance and bio-sensing. To quantitatively interpret the data obtained with particles, it is important to know properties of particles. However, moment individual particle usually too small be measured by common instruments for samples large volume. Here, we present a method characterize microspheres using patterned FePt thin films as standard samples. The film L10 phase has perpendicular anisotropy, features...
A 85Rb atomic fountain clock is under construction in SIOM. The AFC shares a laser source with 87Rb AFC. power spectral density of the sideband phase noise microwave synthesis chain -90 dBc/Hz @ 1Hz, which 15 dB lower than absolute local oscillator. early physical experiments are finished. numbers 3 × 105 and temperature $4\mu \text{k}$ calculated from time flight signal. At present, Ramsey interference fringe observed FWHM 0.95 Hz. measured ground-state hyperfine splitting has deviation...
Abstract We present the polarization‐ and orientation‐dependent characteristics of differential light shifts (DLSs) in 87 Rb using near‐resonant, stimulated Raman spectroscopy with an atomic fountain clock. Simulation experimental results demonstrate that resonant frequencies would shift sinusoidally as rotation laser's polarization vector due to polarization‐dependent tensor DLSs, total DLS is counteracted some elliptically polarized laser configurations. What more, this paper provides...