A5037972952- Luminescence Properties of Advanced Materials
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Radiation Detection and Scintillator Technologies
- CCD and CMOS Imaging Sensors
- Crystal Structures and Properties
- Perovskite Materials and Applications
- 2D Materials and Applications
- Photonic and Optical Devices
- Organic Electronics and Photovoltaics
- Advanced Optical Imaging Technologies
- Advanced biosensing and bioanalysis techniques
- Solid-state spectroscopy and crystallography
- Graphene research and applications
- Optical Coatings and Gratings
- Infrared Target Detection Methodologies
- Polyoxometalates: Synthesis and Applications
- Photonic Crystals and Applications
- Metamaterials and Metasurfaces Applications
- Inorganic Chemistry and Materials
- Microwave Dielectric Ceramics Synthesis
- Advanced MEMS and NEMS Technologies
- Advanced optical system design
- Cryospheric studies and observations
- Random lasers and scattering media
University of Central Florida
2017-2022
Tianjin University of Technology
2022
Henan Polytechnic University
2017-2019
Jiaozuo University
2019
Huazhong University of Science and Technology
2019
Dongfeng Motor (China)
2015
Data processing of multi-wavelength pyrometer (MWP) is a difficult problem because unknown emissivity. So far some solutions developed generally assumed particular mathematical relations for emissivity versus wavelength or temperature. Due to the deviation between hypothesis and actual situation, inversion results can be seriously affected. directly data algorithm MWP that does not need assume spectral model in advance main aim study. Two new algorithms MWP, Gradient Projection (GP) Internal...
Laser intensity noise suppression in the millihertz frequency band is essential for space-based gravitational wave detection to ensure sensitivity of interferometer. Optoelectronic feedback technology one most effective methods suppressing laser noise. The photodetector that first-stage component loop, directly couples into thus significantly affecting In this paper, starting from requirement 0.1 mHz–1 Hz detection, factors electronics photodetectors at extremely low frequencies are analyzed...
This work reports a new host template, K<sub>3</sub>BiTaP<sub>3</sub>O<sub>13</sub>, for both Eu<sup>3+</sup> and Tb<sup>3+</sup> luminescence, providing ‘dimensional obstacle’ to suppress negative concentration quenching with high density of or Tb<sup>3+</sup>.
Constructing 2D heterojunctions with high performance is the critical solution for optoelectronic applications of materials. This work reports on studies preparation high-quality van der Waals SiAs single crystals and high-performance photodetectors based SiAs/SnS2 heterojunction. The are grown using chemical vapor transport (CVT) method then bulk exfoliated to a few layers. Raman spectroscopic characterization shows that low wavenumber peaks from interlayer vibrations shift significantly...
We demonstrate a simple three-step gold thin-film sample preparation process to enhance the morphology and lithographic precision using helium ion based direct-writing. The procedure includes metal deposition, heat treatment template stripping, which produce smooth monocrystalline grains with sizes up 500 nm an average surface roughness of 0.267 nm. By microscope, we can fabricate structures feature less than 20 in 100 thick film high-quality sidewalls. efficacy this technique by producing...
Volume grating is a key optical component due to its comprehensive applications. Other than the common structures, volume essentially predesigned refractive index distribution recorded in materials, which raises challenges of metrology. Although we have demonstrated potential application ellipsometry for characterization, it has been limited absence general forward model reflecting distribution. Herein, introduced distributed dielectric constant based rigorous coupled-wave analysis (RCWA)...
Abstract Substitutional doping of 2D transition metal dichalcogenides (TMDCs) has been recognized as a promising strategy to tune their optoelectronic properties for wide array applications. However, controllable TMDCs remains challenging issue due the natural these materials. Here, growth Ti‐doped MoS 2 monolayers is demonstrated via chemical vapor transport method, and atomic embedded structure confirmed by scanning transmission electron microscope with probe corrector measurements....
A new metric for imaging systems, the volumetric efficiency (VIE), is introduced. It compares compactness and capacity of an imager against fundamental limits imposed by diffraction. Two models are proposed this limit based on idealized thin-lens optical volume required to form diffraction-limited images. The VIE computed 2,871 lens designs plotted as a function FOV; quantifies challenge creating compact, wide FOV lenses. We identify empirical given < 0.920 × 10 −0.582×FOV when using...
We demonstrate a frustrated organic photodetector (F-OPD) that utilizes charge-transport to quench forward-bias current and provide low-current, light-independent OFF state. Photocurrent is collected efficiently with −3 V reverse-bias recovering the sensitive OPD response &gt;10-bit dynamic range. This intrinsic switching mechanism eliminates need for thin-film transistors (TFTs) readout control in high-resolution image sensors. Eliminating TFTs simplifies fabrication processing,...
A novel pixel structure is demonstrated to provide simple patterning for switchable 2-terminal devices with almost 100% fill factor. blocking diode grown directly on top of an organic photodiode a vertically stacked that can easily be integrated in series.
Abstract A ternary borate Na 2 Hf(BO 3 ) has been prepared using a high temperature molten salt method and structurally determined by single crystal X-ray diffraction analysis. It crystallizes in dolomite-type structure with trigonal space group R 3̅, features layer containing [Hf(BO ] layers atom perpendicular to the c -axis. Band calculation density functional theory (DFT) indicates that an indirect bond gap of about 4.76 eV. The photoluminescence excitation emission spectra, decay curve,...