A5100350866- Photonic and Optical Devices
- Photonic Crystals and Applications
- Advanced Fiber Laser Technologies
- Glass properties and applications
- Optical Network Technologies
- Solid State Laser Technologies
- Advanced Fiber Optic Sensors
- Phase-change materials and chalcogenides
- Photonic Crystal and Fiber Optics
- Luminescence Properties of Advanced Materials
- Optical Coatings and Gratings
- E-commerce and Technology Innovations
- Semiconductor Lasers and Optical Devices
- Guidance and Control Systems
- Metamaterials and Metasurfaces Applications
- Photorefractive and Nonlinear Optics
- Advanced Measurement and Detection Methods
- Military Defense Systems Analysis
- War, Ethics, and Justification
- Real-time simulation and control systems
- Magnetic Properties and Applications
- Photoacoustic and Ultrasonic Imaging
- Calibration and Measurement Techniques
- Optical Wireless Communication Technologies
- Advanced Photonic Communication Systems
Hebei Agricultural University
2024
Hubei University of Arts and Science
2022-2024
Harvard University
2023-2024
Inner Mongolia University
2024
Jinan University
2020-2024
Beijing University of Posts and Telecommunications
2023
National University of Defense Technology
2018-2023
Xi'an Jiaotong University
2023
Jilin Electric Power Research Institute (China)
2023
Jiangsu Normal University
2019
Metasurfaces and photonic crystals have revolutionized classical quantum manipulation of light opened the door to studying various optical singularities related phases polarization states. However, traditional nanophotonic devices lack reconfigurability, hindering dynamic switching optimization singularities. This paper delves into underexplored concept tunable bilayer (BPhCs), which offer rich interlayer coupling effects. Utilizing silicon nitride-based BPhCs, we demonstrate bidirectional...
Recently, twisted bilayer photonic materials have been extensively used for creating and studying tunability through interlayer couplings. While experimentally demonstrated in microwave regimes, a robust platform measuring optical frequencies has elusive. Here, we demonstrate the first on-chip crystal with twist angle-tunable dispersion great simulation-experiment agreement. Our results reveal highly tunable band structure of crystals due to moiré scattering. This work opens door realizing...
In this work, we report experimental characterizations of stimulated Brillouin scattering (SBS) in low-loss Ge <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">25</sub> Sb xmlns:xlink="http://www.w3.org/1999/xlink">10</sub> S xmlns:xlink="http://www.w3.org/1999/xlink">65</sub> (GeSbS) chalcogenide waveguides. A 7-cm-long spiral waveguide with a propagation loss as low 0.2 dB/cm and microring resonator high loaded quality factor 1.34×10 <sup...
Abstract Dynamic metasurfaces provide exciting opportunities for spatial light modulation with ultra‐compact footprint and high resolution. Designs reported so far typically suffer from efficiency problem due to the strong coupling between amplitude phase modulation. Huygens metasurface design eliminates back propagation interference of dual resonances, offering a potential solution phase‐only However, intrinsic dispersion mismatch modes restricts this highly limited bandwidth. Here, dynamic...
Abstract High‐efficiency spatial light phase modulation with wide operating bandwidth is highly significant yet challenging. Dynamic metasurfaces leveraging active materials tunable optical response provide a promising solution. Current work generally confronted restricted operation and diminished efficiency, constrained by the limited range inherent absorption of particular at frequency. Recently, emergence lossless phase‐change material Sb 2 Se 3 has garnered widespread attention. Its...
We propose the Cooperative Aerial Robot Inspection Challenge (CARIC), a simulation-based benchmark for motion planning algorithms in heterogeneous multi-UAV systems. CARIC features UAV teams with complementary sensors, realistic constraints, and evaluation metrics prioritizing inspection quality efficiency. It offers ready-to-use perception-control software stack diverse scenarios to support development of task allocation algorithms. Competitions using were held at IEEE CDC 2023 IROS 2024...
The undifferentiated recommendations in current library management systems fail to meet the diverse and personalized needs of users, vast amounts user data accumulated over years remain largely untapped. This paper integrates recommendation requirements self-service libraries with K-means clustering design a labeling system set profile weights. Building on traditional reinforcement learning, we propose an Actor–Critic based algorithm that models task as Markov decision process automatically...
Laser damage thresholds (Ith) at 1.03 µm, as well third-order nonlinear refractive indices (n2) and two photon absorption coefficients (β) 1.55 µm of a number Ge-As-S glasses were measured systematically studied. The glass with the composition Ge0.12As0.24S0.64 showed high Ith maximum figure merit (fm= n2/(β·λ)), therefore was selected core material for fabrication step-index fiber. A compatible Ge0.18As0.1S0.72 chosen cladding material. Based on dispersion calculations, fiber diameter ∼7-10...
We present the design, preparation, and performance optimization of strip waveguide in chalcogenide glass (ChG) for broadband supercontinuum (SC) generation. Ternary Ge-Sb-S systems possess large band-gap, high refractive index, strong laser damage resistance. The characterization SC source generation with 1300 nm bandwidth is experimentally demonstrated. Sensing capability device validated optical absorption β-phenylethylamine solutions near 1551 various concentrations, revealing...
The neodymium cluster evolution in fluorite crystals has been unknown for nearly 60 years, which hindered further exploration of rare-earth-doped materials. In this work, the first-principles calculation is coupled with synchrotron X-ray absorption near-edge structure and extended fine (EXAFS), as well dielectric spectra to study neodymium-doped yttrium-codoped strontium crystals. results reveal that monomers will emerge first work basic units. Then, units aggregate become cubic sublattice...
Optical resonator-based ultrasound detection plays a significant role in the modern ultrasonography. It consists of two steps including optical readout acoustic wave signal and electrical demodulation response. In this article, we conduct innovative researches on both them for improved performance. High quality-factor (Q-factor) chalcogenide glass (ChG) microdisk microring resonators as configurations are designed fabricated. High-precision digital frequency comb (DOFC) technique is proposed...
Abstract Molybdenum disulfide (MoS 2 ) and graphitic carbon nitride (g‐C 3 N 4 heterojunctions were prepared through the hydrothermal method calcination (namely, MoS /g‐C ‐1 ‐2) for photocatalytic degradation of Rhodamine B. X‐ray diffraction scanning electron microscopy confirmed formation a heterostructure composite between g‐C . The bandgap was studied with ultraviolet–visible diffuse reflection spectroscopy electrochemical Mott‐Schottky tests. exhibits remarkable efficiency in degrading...