Wei Li

ORCID: 0000-0003-1617-5422
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About
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Research Areas
  • Photonic and Optical Devices
  • Advanced Fiber Optic Sensors
  • Magneto-Optical Properties and Applications
  • Mechanical and Optical Resonators
  • Plasmonic and Surface Plasmon Research
  • Metamaterials and Metasurfaces Applications
  • Advanced MEMS and NEMS Technologies
  • Semiconductor Lasers and Optical Devices
  • Terahertz technology and applications
  • Advanced Photonic Communication Systems
  • Advanced Fiber Laser Technologies
  • Lightning and Electromagnetic Phenomena
  • Silicon Carbide Semiconductor Technologies
  • Advanced Antenna and Metasurface Technologies
  • Acoustic Wave Resonator Technologies
  • Quantum Information and Cryptography
  • Geophysics and Sensor Technology
  • High voltage insulation and dielectric phenomena
  • Analytical Chemistry and Sensors
  • Induction Heating and Inverter Technology
  • Advanced Optical Sensing Technologies
  • Magnetic Properties and Synthesis of Ferrites
  • Multiferroics and related materials
  • Photonic Crystals and Applications
  • Spectroscopy and Laser Applications

Chinese Academy of Sciences
2016-2025

Shanghai Institute of Microsystem and Information Technology
2023-2025

Shenyang Institute of Automation
2024

University of Chinese Academy of Sciences
2024

China Resources (China)
2019-2024

North University of China
2021-2024

Hubei University of Automotive Technology
2023

Chinese Academy of Engineering
2023

National Engineering Research Center of Electromagnetic Radiation Control Materials
2023

University of Electronic Science and Technology of China
2023

Graphene is an optical material of unusual characteristics because its linearly dispersive conduction and valence bands the strong interband transitions. It allows broadband light-matter interactions with ultrafast responses can be readily pasted to surfaces functional structures for photonic optoelectronic applications. Recently, graphene-based modulators have been demonstrated electrical tuning Fermi level graphene. Their operation bandwidth, however, was limited about 1 GHz by response...

10.1021/nl404356t article EN publisher-specific-oa Nano Letters 2014-01-07

The discovery of bound states in the continuum (BIC) optical nanostructures has garnered significant research interest and found widespread application field optics, leading to an attractive approach achieve high-Q (Quality factor) Fano resonance. Herein, all-dielectric metasurface consisting four gallium phosphide (Gap) cylinders on MgF

10.1364/oe.530788 article EN cc-by Optics Express 2024-07-02

10.1007/s11082-016-0719-3 article EN Optical and Quantum Electronics 2016-08-31

We report an experimental study on how the spin Seebeck effect in magnetic insulators depends damping.

10.1126/sciadv.1601614 article EN cc-by-nc Science Advances 2017-04-07

Inferring the properties of a scattering objective by analyzing optical far-field responses within framework inverse problems is great practical significance. However, it still faces major challenges when parameter range growing and involves inevitable experimental noises. Here, we propose solving strategy containing robust neural-networks-based algorithms informative photonic dispersions to overcome such for sort problem-reconstructing grating profiles. Using two typical neural networks,...

10.1038/s41377-021-00600-y article EN cc-by Light Science & Applications 2021-07-27

A micromachined resonator immersed in liquid provides valuable resonance parameters for determining the fluidic parameters. However, operating environment poses a challenge to maintaining fine sensing performance, particularly through electrical characterization. This paper presents piezoelectric cantilever with stepped shape monitoring purposes. Multiple modes of proposed are available full characterization realizing self-actuated and self-sensing capabilities. The focus is on higher...

10.1038/s41378-022-00368-0 article EN cc-by Microsystems & Nanoengineering 2022-04-02

A polarimetric current sensor based on polarization division multiplexing (PDM) detection is proposed. The novel head with a heat insulation cavity only induces small level of birefringence. Comparing diversity (PD) detection, the sensitivity PDM double PD detection. Moreover, more suitable in presence phase modulation error. In addition, noise and shifting Verdet constant are proved to be main influence factors performance as source power decline.

10.1364/oe.22.011985 article EN cc-by Optics Express 2014-05-09

Acceleration measurement is widely used in military, civil, and industrial applications. However, it difficult for traditional microelectromechanical systems (MEMS) accelerometers to combine high sensitivity large bandwidth. Therefore, we propose a Fabry-Perot (F-P) optomechanical accelerometer based on suspended Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> membrane resonator. We...

10.1109/jsen.2024.3390200 article EN IEEE Sensors Journal 2024-04-23

In this paper, a tunable multiband band-stop filter based on single-layer and few-layer doped periodically graphene rings is designed at THz wavelength. The performance of the proposed structure calculated by using finite-difference time-domain method. metamaterial comprised concentric ring resonators printed substrate layer silica medium. can be achieved adjusting numbers resonator. More importantly, dynamically applied voltage or chemical potential doping to manipulate graphene's Fermi...

10.1080/09205071.2018.1518161 article EN Journal of Electromagnetic Waves and Applications 2018-09-10

The bound states in the continuum (BIC) support anomalous resonances optical or terahertz band with a theoretically infinite quality factor. Therefore, it has great application prospects field of sensors. However, current regulation BIC mainly relies on asymmetry material structure, which requires high processing technology. structure can hardly be effectively adjusted once is formed. In this work, we propose new metasurface consisting an array rectangular hole combined aluminum and...

10.3390/app12094207 article EN cc-by Applied Sciences 2022-04-21

In this paper, a stray current sensor based on an all-side cylindrical spiral fiber is proposed. The configuration of illustrated first. Jones matrix head derived the geometric rotation effect. output representation also obtained. Moreover, effect characteristic parameters error evaluated. On these bases, genetic algorithm applied to optimize in range temperature-induced linear birefringence from 0° 1000°. optimization results include following: For vertical side, length rod and number curve...

10.1109/jphot.2016.2646365 article EN cc-by-nc-nd IEEE photonics journal 2016-12-29

We demonstrate a general approach to splicing microfibers via polymer nanowires. Chloroform dissolved polystyrene nanowires are used splice silica, tellurite glass, and semiconductor or nanowires, with loss down 0.51 dB. Using spliced microfiber structures, we also ring resonators Mach-Zehnder interferometers high robustness. The technique demonstrated here promises potentials for robust optical integration of functional circuits devices.

10.1364/ol.37.004383 article EN Optics Letters 2012-10-16

In this work, a linear birefringence measurement method is proposed for an optical fiber current sensor (OFCS). First, the configuration of system presented. Then, elimination effect azimuth angles between sensing and two polarizers demonstrated. Moreover, relationship birefringence, Faraday rotation angle final output determined. On these bases, multi-valued problem on simulated its solution illustrated when unknown. Finally, experiments are conducted to prove feasibility method. When...

10.3390/s17071556 article EN cc-by Sensors 2017-07-03

This Letter demonstrates the effect and elimination of alignment error in an optical fiber current sensor. An model is built to illustrate error, which does not induce zero drift has a large on output accuracy. The total modulation angle polarization controller are defined as k θ, respectively. Parameter t equal 2θ-2k. method proposed, corrects θ keep parameter at 90 deg. avoids measurement all splice angles separately. Its feasibility shown by simulation results. In addition, conditions...

10.1364/ol.39.004751 article EN Optics Letters 2014-08-05

This paper proposes the decoupling design of stiffness and mass for micro shell resonator with high sensitivity using out-of-plane electrode. The structure, including edge, is primarily designed based on effective mass. structure built basis cross-sectional shape that can be analytically to change (k <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">eff</sub> ) while edge just used adjust (M ). significantly simplifies optimization. Besides it...

10.1109/memsys.2018.8346724 article EN 2018-01-01

This paper presents a novel method to achieve precise frequency balance between degenerate modes of micro shell resonator (MSR) with T shape masses based on mass and stiffness perturbation. The reason causing the large split tuning principle are simply analyzed. For complexity structure, variation mode using different position trimming analyzed by finite element (FEM). A systematic process including initial is proposed simulation results. Considering small sizes special material...

10.1109/isiss.2018.8358119 article EN 2018-03-01
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