A5068561802- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Gas Sensing Nanomaterials and Sensors
- Plasmonic and Surface Plasmon Research
- Advanced Fiber Laser Technologies
- Advanced Photocatalysis Techniques
- Mechanical and Optical Resonators
- Surface Modification and Superhydrophobicity
- Electrodeposition and Electroless Coatings
- Graphene and Nanomaterials Applications
- Advanced materials and composites
- High Entropy Alloys Studies
- Radiomics and Machine Learning in Medical Imaging
- Graphene research and applications
- Metal and Thin Film Mechanics
- Corrosion Behavior and Inhibition
- Medical Imaging and Analysis
- Advanced Sensor and Energy Harvesting Materials
- Intermetallics and Advanced Alloy Properties
- Fluid Dynamics and Heat Transfer
- Transition Metal Oxide Nanomaterials
- Force Microscopy Techniques and Applications
- Additive Manufacturing Materials and Processes
- Advanced Memory and Neural Computing
- Analytical Chemistry and Sensors
Jinan University
2014-2024
Changsha University of Science and Technology
2013-2024
Shanghai Power Equipment Research Institute
2024
Henan University
2023-2024
Kunming University of Science and Technology
2024
Harvard University
2023
Guizhou University
2021-2023
China Railway Group (China)
2023
Nantong University
2016-2022
North China Electric Power University
2020
We demonstrate a novel all-fiber-optic humidity sensor comprised of WS2 film overlay on side polished fiber (SPF). This can achieve optical power variation up to 6 dB in relative (RH) range 35%-85%. In particular, this has linear correlation coefficient 99.39%, sensitivity 0.1213 dB/%RH, and resolution 0.475%RH. Furthermore, shows good repeatability reversibility, fast response breath stimulus. based all-fiber optic is easy fabricate, compatible with pre-established systems, holds great...
Graphene-based electrical chemical vapor sensors can achieve extremely high sensitivity, whereas the comparatively slow sensing response and recovery, research focused on only low concentration detection, have been known as drawbacks for many applications requiring rapid detection. Here we report a novel graphene-based fiber-optic relative humidity (RH) sensor relying fundamentally different mechanism. The power variation of up to 6.9 dB in range (70-95%), display linear with correlation...
Pitcher plant-bioinspired bubble slippery surface fabricated by femtosecond laser for buoyancy-driven self-transport and efficient gas capture.
A novel fiber structure, coreless side-polished (CSPF) that is wrapped by polydimethylsiloxane (PDMS), demonstrated to be highly sensitive temperature because of the high refractive index sensitivity CSPF and large thermal optic coefficient PDMS. Our numerical experimental results show several dips in transmitted spectra PDMSW-CSPF originated from multimode interference (MMI) will blueshift with increase temperature. Furthermore, for such a PDMSW-CSPF, we investigate its sensing...
Synapse-based artificial neural networks (ANNs) are hopeful in overcoming the von Neumann bottleneck since they can process and store data simultaneously. Here, we present an synaptic device based on a ferroelectric BaTiO3 thin film with robust weight update diverse plasticity for ANNs. Specifically, potentiation depression effects strongly depend spike polarity, amplitude, number, rate. Moreover, four types of timing-dependent plasticities (STDP) two Bienenstock–Cooper–Munro (BCM) learning...
We demonstrate a novel all-fiber-optic temperature sensor based on reduced graphene oxide (rGO) film coated onto side-polished fiber (SPF). Significantly enhanced interaction between the propagating light and rGO can be obtained via strong evanescent field of SPF. The light–graphene results in sensing with maximum optical power variation 11.3 dB SPF experimentally. has linear correlation coefficient 99.4%, sensitivity 0.134 °C−1, precision better than 0.03 °C, response speed 0.0228 °C s−1....
Cell viability assessment is critical, yet existing assessments are not accurate enough. We report a cell evaluation method based on the metabolic ability of single cell. Without culture medium, we measured absorption cells to terahertz laser beams, which could target The was assessed with convolution neural classification network morphology. established model THz-AS (terahertz-absorption spectrum) results as y = (x - b)c, where x absorbance and viability, a, b, c fitting parameters model....
Inspired by natural creatures, bubble manipulation surface microstructures in aqueous media has attracted great attention due to its promising applications industrial production. Herein, a superhydrophobic/hydrophilic Janus aluminum membrane with tapered micropore arrays was fabricated femtosecond laser drilling, fluorination, and subsequent fluorination removal. Compared the single interception or penetration of double-faced hydrophilic superhydrophobic membranes, showed distinctive...
A fiber-optic toluene gas sensor based on reduced graphene oxide (rGO) is demonstrated and its sensing property investigated experimentally theoretically. The rGO film deposited a side polished fiber (SPF), allowing the strong interaction between propagating field making SPF sensitive to gas. It found that has good linearity reversibility can work at room temperature with response recovery time of 256 s detection limit 79 ppm. Moreover, theoretical model for established analyze mechanism....
A novel fiber structure, coreless side-polished (CSPF), is proposed and investigated to implement multimode interference (MMI) high sensitive refractive index (RI) sensors. For such CSPF, the part of cladding core a single-mode are off so as make remained D-shaped waveguide. The excitation evolution MMI in CSPF simulated numerically. simulation results show that high-order modes excited within waveguide mainly TE0,1 (TM0,1)~TE0,6 (TM0,6) modes. Moreover, RI sensing characteristics influences...
Slanted micro-/nano-structures play pivotal roles in a diversity of fields, including water-proof engineering and fogdrop collection. In light recent advances fabricating slanted microstructures by using photolithography or reactive ion etching techniques, however, complex, environmentally unfavorable, tedious fabrication process makes them far from practical application. Herein, we present viable strategy to prepare shape memory microcone array (SSMMA) combining the femtosecond laser...
The effective mode index (EMI) of a graphene-coated side-polished fiber (GSPF) is calculated numerically. Whereby, the influences graphene atom layer number, residual radius SPF, light frequency, scattering rate graphene, and temperature on EMI are investigated comprehensively. Two types mechanisms for electro-optical absorption modulation found such GSPF-based modulator. One mechanism Pauli blocking effect (PBE) other plasmonic attenuation (PAE). With optimal design parameters, PBE-based...
A highly sensitive surface plasmon resonance fiber sensor for a vector magnetic field is proposed. The composed of half-side gold-coated multimode-single-mode-multimode hetero-core structure encapsulated with ferrofluids. gold film on the not only produces resonance, but also breaks centrosymmetry light in fiber. Moreover, magnetic-field-dependent anisotropy surrounding ferrofluids makes to both intensity and direction field. Owing unique coating configuration resulting enhancement...
On-Load Tap-Changer (OLTC) is the only core equipment in ultra-high voltage (UHV) converter transformer that moves frequently, and flexible connection structure (FCS) moveable actuating part of vacuum interrupter drive mechanism OLTC. Minimizing transient stress during movement FCS essential for prolonging its fatigue life, thus pursued by optimizing shape sheet this paper. Peak defined as optimization objective, eight geometrical parameters controlling are variables. A progressive...
Lateral momentum conservation is typically kept in a non-absorptive rotationally symmetric system through mirror symmetry via Noether's theorem when illuminated by homogeneous light wave. Therefore, it still very challenging to break the and generate lateral optical force (LOF) system. Here, we report general dynamic action SO(2) system, originating from polarization-tuned breaking (MSB) of scattering. We demonstrate theoretically experimentally that MSB can be generally applied tuned...