A5004135243- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Optical Coherence Tomography Applications
- Semiconductor Lasers and Optical Devices
- Metamaterials and Metasurfaces Applications
- Advanced Optical Sensing Technologies
- Glass properties and applications
- Spectroscopy and Laser Applications
- Water Quality Monitoring and Analysis
- Solid State Laser Technologies
- Advanced Antenna and Metasurface Technologies
- Photonic Crystal and Fiber Optics
- Optical measurement and interference techniques
- Advanced biosensing and bioanalysis techniques
- Random lasers and scattering media
- Optical Polarization and Ellipsometry
- GaN-based semiconductor devices and materials
- Advanced Fiber Laser Technologies
- Antenna Design and Analysis
- Luminescence Properties of Advanced Materials
- Advanced Measurement and Detection Methods
- Plasmonic and Surface Plasmon Research
- Terahertz technology and applications
- Optical Systems and Laser Technology
- Industrial Vision Systems and Defect Detection
China Jiliang University
2015-2025
Sichuan Normal University
2022-2024
Institute of Microelectronics
2024
Chinese Academy of Sciences
2024
Guangdong Urban & Rural Planning and Design Institute
2022
Shandong University
2022
State Key Laboratory of Chemobiosensing and Chemometrics
2019-2021
Hunan University
2019-2021
Sichuan University
2018
Hunan University of Arts and Science
2015-2016
In this study, a perfect metamaterial absorber (PMMA) based on an indium antimonide temperature-sensitive material is designed and investigated in the terahertz region. We demonstrate that it ideal narrow-band with polarization-insensitive wide-angle absorption properties. Numerical simulation results show proposed PMMA can be operated as temperature sensor sensitivity of 21.9 GHz/K. A graphene layer was added to structure improve sensitivity, increased 24.4 Owing its excellent performance,...
Random speckle patterns contain valuable information about the incident light. Researchers have successfully constructed spectrometers and wavemeters by utilizing speckles generated inter-mode interferences of a multimode fiber (MMF). However, cameras were often employed to record data in previous reports. The camera's high cost (especially near-infrared range), large size, low response speed limit applications optical communications, metrology, sensing. A seven-core (SCF) was fused with an...
A machine vision-based weld seam positioning system for thermos cups is proposed. The system’s operational flow and image algorithms are designed to achieve automatic calibration of the orientation. Experimental results show a qualification rate 97.8%, demonstrating robust performance across various cup models. average error 45 pixels, with maximum 153 corresponding angular deviations 0.68° 2.30°, respectively. processing time single algorithm run 128 ms, ensuring efficient operation in...
A novel Er-doped silica fiber, with heavy Er doping, was specially developed for application to a single frequency fiber laser. Two high temperature-sustainable Bragg gratings, written into Bi-Ge codoped photosensitive were chosen the and spliced specialist doped form compact, linear cavity, The laser retained mode oscillation over wide temperature range, from room 400 degrees C. wavelength of output could be tuned smoothly, without hopping being observed, when changed. narrow linewidth less...
A [Ru(bpy)<sub>2</sub>(bqdppz)]<sup>2+</sup> ligand with high selectivity towards G-quadruplex was synthesized and introduced to serve as a prominent molecular light switch <italic>via</italic> specifically recognizing the cocaine aptamer-involved G-quadruplex.
Novel complex C2-quaternary-indol-3-one units bearing versatile nitro groups have been successfully developed from pseudo-indolones and α,β-unsaturated nitroolefins through rhodium-catalyzed C–H activation/[3 + 2] spirocyclization. Notably, four diastereomers could be selectively obtained in the reaction by condition control.
We proposed and experimentally demonstrated a broadband terahertz (THz) metamaterial absorber based on symmetrical L-shaped metallic resonator. The structure produces two absorption peaks at 0.491 0.73 THz, with the rates of 98.6% 99.6%, respectively. Broadband was obtained from 0.457 to 1 achieving <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:mo>></mml:mo> </mml:mrow> <mml:mn>90</mml:mn> <mml:mi...
Strong fiber Bragg gratings (FBGs) with high-temperature sustainability were fabricated by writing the into several specially developed photosensitive fibers. The thermal decay characteristics of these investigated over a temperature range from room to 950°C. A cation-hopping model is presented account for obvious differences between FBGs in terms their properties. related cation-oriented trap distribution also used simulate properties during annealing and found yield good fit experimental...
We report the results of our investigation on optical properties bismuth borate glass (75B2O3-25Bi2O3). Unusual near-infrared (NIR) and visible band luminescence was observed when sample excited by lasers working at 532 808 nm. The NIR fluorescent lifetime measured room-temperature longer than two hundred microseconds. This indicated that this system could be a new candidate for broadband amplification laser material covering wavelength from 1100 to 1300 influences preparation conditions...
Urban resilience to natural disasters (e.g., flooding), in the context of climate change, has been becoming increasingly important for sustainable development cities. This paper presents a method assess urban flooding terms recovery rate different subdistricts city using all-weather synthetic aperture radar imagery (i.e., Sentinel-1A imagery). The factors that influence resilience, and their relative importance, are then determined through principal component analysis. Jakarta, flood-prone...
We developed two kinds of erbium (Er)-bismuth (Bi) co-doped silica fibers with different doping concentrations. After investigation its spectral characteristics, it was found that the co-doping bismuth could alleviate clustering ions in fiber and thus improve fluorescence efficiency. However, near-infrared (NIR) spectrum attributed to from reported before needs further comprehensive investigation. For heavy Er doped erbium-bismuth (Er-Bi) (about 8000 ppm concentration), optical absorption...
For speckle pattern-based wavemeters or spectrometers, the intermodal and chromatic dispersion of diffusion waveguide are key factors in determining wavelength resolution. In this study, we propose a new mechanism to modulate fiber speckles aside from related effect. The polarization modulation is introduced rectangular core (RCF) by using an in-line rotator (IPR). IPR can rotate angle at different wavelengths. Interestingly, it observed that modulated patterns appear periodically similar,...
As an efficient, noninvasive, and high spatiotemporal resolved approach, photodynamic therapy (PDT) has therapeutic potential for cancer treatment, whereas its development still faces a number of challenges, such as the lack efficient stable photosensitizers (PSs) inadequate ability PSs to accumulate at tumor sites target responses. Herein, pH-responsive calcium carbonate (CaCO3)-mineralized AIEgen nanoprobe was prepared by using bovine serum albumin skeleton loaded with...
This study introduces the design of a nonlinear frequency-modulated continuous wave (FMCW) laser ranging system. In contrast to commonly used triangular linear modulation, this utilizes sinusoidal modulation. The frequency information original signal is extracted using an on-chip interferometer based on SiON waveguides and IQ demodulation technology. After fitting measured interference at equal intervals, corresponding distance derived fast Fourier transform (FFT). principles underlying...
A near-infrared spectrometer based on offset fused multimode fiber (MMF) is investigated in this study. The light spectrum recovered by analyzing the speckle images when passing through MMF. In order to generate adequate speckles, a polarization maintaining (PMF) and 30 cm long MMF are with vertical offset. Seven different displacements implemented fusion. follow-up experiments show that fusion has significant influence spectral correlation resolution. Larger can excite more high-order modes...