A5101838005- Advanced Fiber Laser Technologies
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Laser-Matter Interactions and Applications
- Advanced Optical Sensing Technologies
- Liquid Crystal Research Advancements
- Antenna Design and Analysis
- Microwave Engineering and Waveguides
- Magnetism in coordination complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Random lasers and scattering media
- Photorefractive and Nonlinear Optics
- Energy Harvesting in Wireless Networks
- Nonlinear Optical Materials Studies
- Metal complexes synthesis and properties
- Photonic and Optical Devices
- Quantum optics and atomic interactions
- Mechanical and Optical Resonators
- Semiconductor Lasers and Optical Devices
- Optical Coherence Tomography Applications
- Advanced Fiber Optic Sensors
- Solid State Laser Technologies
- Advanced Measurement and Metrology Techniques
- Optical Systems and Laser Technology
- Cavitation Phenomena in Pumps
Beihang University
2025
North China Electric Power University
2024
Hebei University of Technology
2020-2022
Harbin Institute of Technology
2008-2021
Shaanxi Normal University
2009-2017
Ministry of Transportation of Ontario
2014
Air Force Engineering University
2014
Research Institute of Highway
2014
Bundesministerium für Klimaschutz, Umwelt, Energie, Mobilität, Innovation und Technologie
2014
Jiangsu University
2014
A compact multiple-input–multiple-output (MIMO) antenna is presented for ultrawideband (UWB) applications. The consists of two open L-shaped slot (LS) elements and a narrow on the ground plane. are placed perpendicularly to each other obtain high isolation, added reduce mutual coupling in low frequency band (3-4.5 GHz). proposed MIMO has size <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">$32 \times...
Stimulated Brillouin scattering (SBS), with its advantages of low quantum defect and narrow gain bandwidth, has recently enabled an exciting path toward narrow-linewidth low-noise lasers. Whereas almost all work to date been in guided-wave configurations, adaptation unguided lasers (BLs) offers a greater capacity for power scaling, cascaded Stokes control, flexibility expanding wavelength range. Here, we report diamond laser (DBL) employing doubly resonant technology at 1064 nm. output 22.5...
The pulse duration of the near quarter-acoustic period (τa) is demonstrated in transient stimulated Brillouin scattering (SBS) compression by suppressing Stokes trailing-edge broadening at high intensities. A theoretical analysis reveals that difficulty attaining limit caused trailing edge owing to insufficient pump depletion, and this undesirable phenomenon can be significantly suppressed a SBS gain coefficient. An average ∼1.05 τa was experimentally achieved with high-energy efficiency...
The inherent sensitivity to perturbations for the multimode fiber (MMF) has become a major obstacle single MMF-based imaging advancing towards applications. MMF-enabled compressive provides fundamental and elegant solution by employing short MMF as speckle illuminator inherently stable single-mode remaining flexible part. However, existing schemes hardly achieve high resolution, transmittance, minimization robustness at same time. Here, we propose random-phased plate quickly scramble...
A high temporal waveform fidelity stimulated Brillouin scattering phase conjugate mirror (SBS-PCM) with energy efficiency, based on a novel medium, Novec-7500, is proposed and practically achieved in this study. theoretical analysis reveals that the temporal-domain distortion caused by inherent pulse duration compression effect of SBS, undesirable phenomenon can be significantly suppressed decreasing coefficient (CC afterwards), which defined as gain divided phonon lifetime, identified key...
Tunable solid-state dye laser samples based on poly methyl methacrylate (PMMA) doped with PM567 and PM580 were prepared the performances for them studied in this letter. With pump repetition rate of 1 Hz incident intensity 0.1 J/cm2, more than 30 nm wide tunable range had all been achieved using two samples, highest slope efficiency 52.08% was obtained sample PM567. To best our knowledge, is under same condition so far. The linewidth measured result less 0.2 nm. All results indicate that...
In the process of motor rotation, vibration caused by rotor mass eccentricity seriously affects dynamic characteristics and safety operation system. So compensation control on rotating machine has great significance, especially for high speed bearing less induction (BIM). A strategy was presented to restrain suspended BIM. Firstly, suspension dynamical model deduced unbalanced mechanism analyzed. Secondly, based decoupling between electromagnetic torque radial force, obtained signal from...
A broadband low profile microstrip filter-antenna with an omni-directional pattern is presented. coupled line used to connect a antenna and the second resonator of filter as admittance inverter. In design, performs radiator; meanwhile it also last bandpass filter. Therefore, loss reduced between antenna. The proposed can provide 15% impedance bandwidth, 3.8mm, high suppression in stopband. simulated results are
Lasers with narrow linewidths and single frequencies are widely used in fields such as radar detection, nonlinear optics, precision measurements. The demand for lasers has promoted the rapid development of single-longitudinal-mode (SLM) selection technology. Here, we highlight working principles current mainstream SLM technologies recent advances field. We compare characteristics different methods list challenges faced by these technologies.
Cyclin B1, an important cell cycle regulator, was up-regulated in lymphocytes of human immunodeficiency virus (HlV)-infected patients. However, the mechanism cyclin B1 up-regulation and effects on host cells remain unclear. Here, we show that HIV-encoded Tat protein regulates levels two different ways: first, stimulates transcription which increases promotes apoptosis; second, polyubiquitination-mediated degradation through binding to N-terminal (aa 61–129) is just downstream D box, prevents...
Abstract Cross‐coupling and current sharing are the main problems faced by modular wireless power transfer (WPT) systems for electric vehicle (EV) applications. In this study, a decoupled dual‐channel loosely coupled transformer (LCT) with hybrid core composed of nanocrystalline ferrite is proposed WPT systems, as well specific topology or detuned compensation. Firstly, requirements LCT parallel system compensation discussed. For these requirements, structure corresponding optimization...
A compact loop-loaded dual-band monopole with integrated band-select filter for 2.45/5.2-GHz wireless local area network (WLAN) is presented. The proposed antenna system comprises a radiator and microstrip pseudo-interdigital bandpass filter. Instead of using the traditional 50Ω interfaces, impedance between optimized to improve performance. provides good selectivity rejection in out band regions omnidirectional radiation patterns within two desired bands. measured results show agreement...
In this paper, a compact and anti-interference filter-antenna is designed for modern wireless communication systems. This consists of microstrip rectangular open-loop resonator, coupling line Γ-shaped antenna. The antenna excited by coupled line. Meanwhile, the used as an admittance converter in filter design. not only plays role radiation, but also last resonator. advantage design that there no loss between measured results show impedance bandwidth reflection coefficient S11<;- 10dB 12.7%...
The transition of a two-level system driven by linearly weak chirped pulse is studied. Under the first order perturbation approximation, an analytical expression population probability obtained, which similar to one describing Fresnel diffraction straight edge. It shown that oscillation results from quantum wave function in time-domain.
A dual-polarized cross bowtie dipole antenna with shorted stubs for base station applications is presented. pair of orthogonal dipoles a rectangular ground plane used to obtain the two linear polarizations. Besides coaxial feeders and feed baluns, are introduced improve impendence matching isolation between wideband impedance characteristics about 27.6% |S11|≤−10dB (+45° polarization) |S22|≤−10dB (−45° obtained. It very suitable potential in mobile communication such as DCS, PCS UMTS,...