A5101399140- Non-Destructive Testing Techniques
- Perovskite Materials and Applications
- Strong Light-Matter Interactions
- Metamaterials and Metasurfaces Applications
- Photonic and Optical Devices
- Gas Sensing Nanomaterials and Sensors
- Plasmonic and Surface Plasmon Research
- Geophysical Methods and Applications
- Aluminum Alloys Composites Properties
- Microstructure and mechanical properties
- Advanced MEMS and NEMS Technologies
- Advanced Fiber Optic Sensors
- Mechanical and Optical Resonators
- Orbital Angular Momentum in Optics
- Magnetic Properties and Applications
- Silicon Nanostructures and Photoluminescence
- Aluminum Alloy Microstructure Properties
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Antenna and Metasurface Technologies
- Nanowire Synthesis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Seismic Performance and Analysis
- Image and Object Detection Techniques
- Behavioral Health and Interventions
- Organic Light-Emitting Diodes Research
China Electronics Technology Group Corporation
2010-2025
CRRC (China)
2025
Qiqihar Medical University
2024
Qiqihar University
2024
South China University of Technology
2019-2023
Beijing Jiaotong University
2023
Chinese Academy of Geological Sciences
2012-2022
Suzhou Institute of Nano-tech and Nano-bionics
2019-2022
Chinese Academy of Sciences
2019-2022
Nanjing Normal University
2022
The authors report on surface-depletion controlled gas sensing ZnO nanorods. These nanorods were synthesized through a simple wet chemical route at room temperature. diameter of is about 15nm, which close to two times the Debye length ZnO. In contrast previous report, rather than contact and sensitivity up 29.7 against 100ppm ethanol. Such high due an almost complete depletion rods in air, confirmed from photoluminescence spectrum x-ray photoelectron spectroscopy. mechanism by surface...
Plasmonic nanolasers have ushered in a paradigm of deep sub-wavelength coherent optical sources with ultrafast dynamics that exploit the strong confinement capabilities metals. Although these devices are usually associated higher thresholds due to absorption metals, high gain inorganic II-VI and III-V semiconductor materials allowed realization plasmonic operating under ambient conditions. In this work, we introduce single-crystalline lead halide perovskite (CH3NH3PbI3) nanowires as an...
Optoelectronic logic gates (OELGs) have become one of the excellent candidates for devices in post Moore era, with great potential complex optical computing, secure communication, and image processing. As an important component OELGs, bipolar photodetectors (BPDs) face problems such as limited functionality, narrow response range, slow speed, high-power consumption. Here, we propose a self-powered BPD back-to-back structure based on HgTe quantum dot (QD) organic material PBDB-T:Y6 stacking....
Abstract Manipulating stimulated‐emission processes and overcoming the ohmic loss of metals in plasmonic lasers are significance for according applications biological sensors, data storage, photolithography, optical communications. Herein, through utilizing an electrochemical‐assisted growth method high‐quality perovskite nanowires, based on structure metal/dielectric layer/perovskite nanowires constructed. The demonstrate a threshold 62 µJ cm −2 , high quality factor Q ≈ 655, fast lasing...
In view of the safety problems single-channel hydraulic steering system which widely used in multi-axle cooperative super autonomous rapid transit (SRT), a based on redundant steering-by-wire is developed. Firstly, real-time task and status judgment are placed master station controller for processing, fully ensuring performance task. At same time, slave set to synchronously process judge status. The two channels work simultaneously, when one channel fails, other can take over real time. This...
Electronic noses have been widely used in industrial production, food preservation, agricultural product storage, environmental monitoring, and other fields. However, due to the cross-sensitivity of gas-sensing responses, accurately measuring concentration mixed gases remains challenging. To address this issue, study attempts determine number state variables that produce cross-influence based on experimental data, establish space model from equivalent circuit model, obtain parameters through...
In recent years, the field of plasmonics has become dependent on ability to maximize quality metal films. particular, plasmonic lasers will require a loss as low possible in order minimize their operational threshold if they are find applications. this article, findings studies, which report reduced thresholds incorporating high films with both ultraflat surfaces and crystallinity, reassessed. role deposition rate substrate temperature silver film growth for improving performance hybrid zinc...
In this article, we fabricated and tested a series of extrinsic fiber Fabry-Perot interferometric acoustic sensors based on the corrugated silver diaphragms. These diaphragms were through simple low-cost method. The corrugations first etched silicon surface permanently then transferred to diaphragm with help photoresist as sacrificial layer. different corrugation depths fabricated. experimental results showed same trend theoretical mechanical sensitivities diaphragms, which increased...
To date, plasmonic nanowire lasers mostly adopt hybrid waveguides, while there is a lack of study in terms the confinement effect and corresponding ultrafast dynamics non-hybridized lasers. Here, we report composed single CH3NH3PbBr3 on silver film without any insulating layer at room temperature. The exhibit lasing with around 1.9 ps decay rate 1 peak response time. Such values are among best ones ever reported. Interestingly, threshold same order as that their counterparts. low due to...
Metalenses, being composed of subwavelength phase-control nanostructures, can achieve peculiar manipulations incident rays. Dispersion is one the key optical characteristics to be eliminated or exploited in designing broadband systems. In study, silicon metalenses made nanobricks are investigated multiwavelength multiplexing spectroscope long-wave infrared regime. Firstly, geometrical dependencies nanobricks' transmittance, phase difference, and structural dispersion obtain fundament...
The first step to quantifying complex defects is knowing its geometry, shape, and orientation. This evidently challenging in electromagnetic nondestructive testing (ENDT), especially for subsurface defect detection, cases where no information about or material known given. In this article, we propose a heuristic approach the visualization, verification, validation of magnetic flux leakage (MFL) testing. method based on MFL experiment using magneto-optical images (MOIs) that are obtained from...
Abstract Lead halide perovskites have gained tremendous attentions in many fields, especially nanolasers, owing to the excellent optoelectronic properties. However, underlying lasing mechanism is not clear both plasmonic and photonic nanolasers at room temperature. Here, lasers counterparts based on organic–inorganic hybrid lead tri‐bromine perovskite nanowires are achieved temperature compared terms of evolution, wavelengths, dynamics. The same spectra evolution emission wavelength indicate...
The generation of hollow beams with a long focal depth from radially polarized Bessel-Gaussian beam second-order vortex phase and an amplitude filter is theoretically investigated by Richards-Wolf's integral. null intensity on the optical axis achieved introducing vortex. result filtering based cosine function Euler transformation. Numerical results indicate that improved 0.96λ to 2.28λ slight increase transverse size for simplest design. distribution twist phenomenon x- y-polarized...
Summary Although buckling restrained braces (BRBs) are commonly applied in seismic buildings to mitigate structural damage, their performance was often limited by rupture of the corner gusset connections due additional frame action. This issue may be resolved alternative frame–gusset interaction. In this study, used procedures for design traditional connection reviewed, followed a case study on effect action behavior these steel frames with BRBs. Inspired analysis, two different strategies,...
Metasurfaces, being composed of subwavelength nanostructures, can achieve peculiar optical manipulations phase, amplitude, etc. A large field view (FOV) is always one the most desirable characteristics systems. In this study, metasurface-based quadratic reflectors (i.e., meta-reflectors) made HfO2 nanopillars are investigated to realize a FOV at infrared wavelengths. First, geometrical dependence nanopillars’ phase difference analyzed show general principles designing metasurfaces. Then, two...