A5062260473- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Photonic Crystal and Fiber Optics
- Magneto-Optical Properties and Applications
- Semiconductor Lasers and Optical Devices
- Quantum Dots Synthesis And Properties
- Carbon and Quantum Dots Applications
- Geophysical and Geoelectrical Methods
- Optical Network Technologies
- Nanocluster Synthesis and Applications
- Structural Behavior of Reinforced Concrete
- Advanced biosensing and bioanalysis techniques
- Concrete Corrosion and Durability
- Advanced Photonic Communication Systems
- Laser Material Processing Techniques
- Mechanical and Optical Resonators
- Corrosion Behavior and Inhibition
- Seismic Waves and Analysis
- Advanced Sensor and Control Systems
- Perovskite Materials and Applications
- Power Systems and Renewable Energy
- Advanced MEMS and NEMS Technologies
- Multilevel Inverters and Converters
- Plasmonic and Surface Plasmon Research
Guangdong University of Technology
2025
Chongqing University
2015-2024
China Southern Power Grid (China)
2024
Changsha University of Science and Technology
2010-2023
Changsha University
2020-2023
BOE Technology Group (China)
2023
State Grid Hunan Electric Power Company Limited
2023
Yunnan Normal University
2022
Chinese Academy of Medical Sciences & Peking Union Medical College
2022
China Coal Technology and Engineering Group Corp (China)
2021
Micro Fabry-Perot (F-P) interferometers (MFPIs) are machined in a single-mode fiber (SMF) and photonic crystal (PCF) by using near-infrared femtosecond laser, respectively. The strain temperature characteristics of the two MFPIs with an identical cavity length investigated experimental results show that sensitivity PCF-based MFPI is smaller than SMF-based due to their different waveguide structures, while have close sensitivities similar host materials. These silica fibers compact, stable,...
We report a highly sensitive refractive index (RI) sensor based on three cascaded single-mode fiber tapers, in which weak taper is sandwiched between the two tapers to improve sensitivity of sensor. Experimental results show that device 0.286 nm for 0.01 RI change, about four times higher than normal two-cascaded-taper-based Mach-Zehnder interferometer. In addition, could be enhanced by tapering longer and thinner middle taper. Such kinds low-cost fiber-optic sensors would find applications...
Halide perovskites have attracted great attention in recent years as promising materials for optoelectronic devices, especially inorganic like CsPbX3 (X = I, Br, Cl). Herein, CsPb(Br/I)3 nanorods with a photoluminescence (PL) spectrum located at 610 nm been obtained by facile hot-injection method, and the UV-vis absorption further revealed that bandgap is around 1.98 eV. Furthermore, photoelectric response of showed relatively short rise-time (0.68 s) decay-time (0.66 s), on/off photocurrent...
A peanut-shape fiber structure that can realize the coupling and recoupling between core mode cladding modes is proposed in this paper. Based on structure, a simple low-cost Mach-Zehnder interferometer (MZI) formed by cascading two structures single-mode demonstrated. The theory experimental results show first couple light energy of into second recouple mode. high-quality interference spectrum with fringe visibility about 13 dB observed. Moreover, it has very good mechanical strength...
Pollutions caused by heavy metals has become a wordwide concerned issue. Herein, CsPbBr<sub>3</sub> perovskite quantum dots are used as fluorescent probe for selective detection of copper ions in organic phase with limit (LOD) down to 0.1 nM.
We have constructed a novel refractive index (RI) sensor based on fiber optic Fabry-Perot interferometer (FPI) by splicing section of hollow core between single-mode and photonic crystal (PCF). Owing to the air holes in cladding PCF, various substances, such as liquids gases with different RI, can enter or leave in-fiber cavity, which makes device usable refractometer. In this paper, FPI has been used monitor RI changes pressures, experimental results show that an sensitivity 805.1 μm/RIU,...
We report a magnetic-field sensor by merging the advantages of optical fiber Michelson interferometers with that magnetic fluid. Compact and low-cost were first fabricated high-frequency CO(2) laser, then they inserted into glass capillaries water-based Fe(3)O(4) fluid as sensing elements. The characteristics have been investigated experimental results show reflective spectrum fiber-magnetic linearly shifted change strength is perpendicular to axial devices. interference arm's diameter 50 μm...
An ultra-compact optical fiber magnetic field sensor based on a microstructured (MOF) modal interference and ferrofluid (FF) has been proposed experimentally demonstrated. The was fabricated by splicing tapered germanium-doped index guided MOF with six big holes injected FF to two conventional single-mode fibers. transmission spectra of the under different intensities have measured theoretically analyzed. Due an efficient interaction between nanoparticles in excited cladding mode,...
We present an amplitude difference comparison of coherent envelope method for accurately measuring the laser linewidth. The new comparing contrast second peak and trough to determine linewidth is proved be stable has little error. feasibility accuracy have been confirmed theoretically experimentally. Our based on short delayed self-heterodyne interferometer can almost ignore influence broadening spectrum induced by 1/f frequency noise. Therefore, advantage accurate detection narrow or ultra-narrow
Dual-wavelength fiber lasers with ultra-narrow linewidth find wide applications in high-speed optical communications, optic sensors, high resolution measurements and medical instruments microwave or terahertz generation systems. Based on the compression mechanism due to Rayleigh backscattering, this paper adopts a simple ring structure cooperated two Bragg gratings centered at 1550 nm 1530 respectively, achieving dual-wavelength laser linewidth, 3dB of ~700 Hz for each wavelength, SNR 60dB....
We have proposed and experimentally demonstrated a high-precision temperature-compensated magnetic field sensor based on two optoelectronic oscillators (OEOs) incorporating cascaded magnetostrictive alloy-fiber Bragg grating (MA-FBG) FBG filters. The optical sources are provided by the reflection signals of FBGs. source wavelength is related to overall time delay OEO loop which determines oscillating frequency OEO. central wavelengths MA-FBG change along with temperature. Therefore, we can...
A magnetic sensor utilizing long-period fiber grating (LPFG) written by high frequency CO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> laser pulses in a D-shaped and the magneto-optical effect of fluid is proposed. Because evanescent field structure fiber, immersing LPFG with period 685 μm into water-based within capillary tube, redshift as 33.5 nm resonant wavelength observed when external magnetic-field intensity 189.7 mT, resulting...
Percutaneous transluminal coronary angioplasty (PTCA) represents an efficient therapeutic method for atherosclerosis but conveys a risk of causing restenosis. Endothelial colony-forming cell-derived exosomes (ECFC-exosomes) are important mediators during vascular repair. This study aimed to investigate the effects ECFC-exosomes in rat model and explore molecular mechanisms underlying ECFC-exosome-mediated on ox-LDL-induced endothelial injury.The effect autophagy human microvascular cell...
A dual-broadband vertically polarized omnidirec-tional patch antenna with simple low-profile structure is proposed for mobile communication. The design formed by a wheel-shaped patch, circular ground reflector, four arc-shaped strips, feeding pins, eight shorting pins and 1-to-4 power divider. connected to the reflector shoring fed divider generate TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">01</sub> or...
We report the synthesis of a 2-fold interpenetrated primitive cubic (pcu) topology network, X-pcu-11-Zn, formulated as [Zn₂(DMTDC)₂(dpb)] (H₂DMTDC = 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid; dpb 1,4-di(pyridin-4-yl)benzene). Upon removal solvent from the...
Abstract. In recent years, marine controlled-source electromagnetic (MCSEM) systems have emerged as a crucial technology in offshore resource exploration. Nevertheless, the high-power operations inherent to these present substantial safety challenges, primarily due undetectable thermal anomalies. This study introduces novel integration of non-contact infrared imaging into MCSEM transmission systems, superseding conventional point-contact temperature measurement methods with comprehensive,...
We report a simple and robust all-fiber in-line Fabry-Pérot interferometer (FPI) with an air bubble cavity, which is fabricated by directly splicing multimode photonic crystal fiber (MPCF) to conventional single-mode commercialized fusion splicer. The microbubble inserted between the two fibers has smooth glass-air interfaces separated distance <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">L</i> as reflective mirrors of FPI. Due big holes in...
We experimentally demonstrate a novel optical fiber chemosensor for trace Cu 2+ ions detection that is implemented by using an in-line Mach–Zehnder interferometer (MZI) in conjunction with optoelectronic oscillator (OEO). The MZI fabricated lateral offset splicing section of D-shaped between two single-mode fibers. It splices the broadband source into sinusoidal-shaped light, which can form single passband microwave photonic filter (MPF) combining modulator, segment and photodetector. center...