A5081764957- Optical Coatings and Gratings
- Photonic and Optical Devices
- Phase-change materials and chalcogenides
- Chalcogenide Semiconductor Thin Films
- Metal and Thin Film Mechanics
- Metamaterials and Metasurfaces Applications
- Advanced Semiconductor Detectors and Materials
- ZnO doping and properties
- Plasmonic and Surface Plasmon Research
- Surface Roughness and Optical Measurements
- Advanced Sensor Technologies Research
- Thin-Film Transistor Technologies
- Semiconductor materials and devices
- Photonic Crystals and Applications
- Calibration and Measurement Techniques
- Advanced Fiber Optic Sensors
- Copper Interconnects and Reliability
- Semiconductor Lasers and Optical Devices
- Optical Polarization and Ellipsometry
- Solar-Powered Water Purification Methods
- Thermal Radiation and Cooling Technologies
- Acoustic Wave Resonator Technologies
- Optical Systems and Laser Technology
- Advanced Antenna and Metasurface Technologies
- Plasma Diagnostics and Applications
Shanghai Institute of Technical Physics
2015-2024
Chinese Academy of Sciences
2014-2024
ShanghaiTech University
2015-2024
University of Chinese Academy of Sciences
2020-2024
Changsha University of Science and Technology
2022
Advanced Coatings (Belgium)
2019
Nanchang University
2012-2014
Ludong University
2009
Abstract A domain wall, as a device, can bring about revolution in developing manipulation of semiconductor heterostructures devices at the atom scale. However, it is challenge for these new to control wall motion through insulator-metal transition correlated-electron materials. To fully understand and harness this motion, requires visualization dynamics real space. Here, VO 2 phase was observed directly by situ TEM Experimental results depict scale evolution morphologies exact positions...
Efficient solar thermal conversion is crucial for renewable clean energy technologies such as power generation, thermophotovoltaic and seawater desalination. To maximize efficiency, a selective absorber with tailored absorption properties designed applications indispensable. In this study, we propose broadband based on amorphous carbon (a-C) metamaterials that achieves high in the ultraviolet (UV), visible (Vis) near-infrared (NIR) spectral ranges. Additionally, through metal doping, optical...
Conventional Dammann gratings control the phase profiles of light by varying etching depths DOEs, suffering from a contradiction between fabrication complexity and output performance. Due to advantage single-step procedure, ability locally manipulate at subwavelength resolution, possibility vertical integration, metasurfaces have attracted extensive interest. Here, we propose polarization-independent metasurface-based that can redistribute collimated into high efficiency wide-angle spot...
Rare earth fluoride (REF3, RE = La, Ce, Pr, Sm, Er, Yb, Y) films were deposited on Ge(1 1 1) and silicon wafers in order to determine optical constants from the near infrared up high frequency tail of reststrahlen band. The FT-IR transmission spectrum reflection used examine properties fluorides. 2 20 µm calculated using classical Lorentz oscillator model by fitting spectrum. reflective fluorides was demonstrate absorption difference this region. It is found that extinction coefficients rare...
Thin silver films with different thicknesses are deposited by thermal evaporation, and the Drude–Lorentz mode is used to describe optical properties of samples measured an ellipsometer, thickness uniqueness analysis reflection spectrum testing verify simulated results. We obtain surface morphologies using scanning electron microscopy, calculate relationship reflectance film at wavelength 800 nm Mathcad software. Moreover, effective medium approximation explain differences...
Optimizing the atomic layer deposition (ALD) process of films is particularly important in preparing multilayer interference films. In this work, a series Al2O3/TiO2 nano-laminates with fixed growth cycle ratio 1:10 were deposited on Si and fused quartz substrates at 300 °C by ALD. The optical properties, crystallization behavior, surface appearance microstructures those laminated layers systematically investigated spectroscopic ellipsometry, spectrophotometry, X-ray diffraction, force...
In recent years, broadband absorbers in the long-wave infrared (LWIR) spectrum have shown great scientific value and advantages some areas, such as thermal imaging radiation modulation. However, designing a absorber with an ultra-high absorption rate has always been challenge. this paper, we design near perfect that is highly tunable, angle insensitive, polarization independence for LWIR. By using multi-mode localized surface plasmon resonance (LSPR) of metal structure, achieves very high...
To measure the global atmospheric three-dimensional distribution and change of temperature humidity is one key areas in remote sensing detection; it also a new research development direction field meteorological satellite application. As main element China second generation geostationary Fengyun 4 (FY-4), which was launched on Dec. 11, 2016, Geostationary Interferometric Infrared Sounder (GIIRS) first interferometric infrared sounder working orbit internationally. It used for vertical...
The growing attention in solar energy has motivated the development of a highly efficient absorber. Under certain light concentration, increasing spectral absorption absorbers can improve photothermal conversion efficiency. In this paper, we first designed and prepared single-layered cermet absorber based on double-gradient model refractive index extinction coefficient with structure Ti@a-C layer/a-C protective layer/SiO2 antireflective layer via magnetron sputtering method. shows radiation...
Cut-off filters are usually operating at oblique incidence and exhibit polarization dependence properties. We propose a simple approach to design cut-off with low linear sensitivity (LPS) based on dielectric-metal-dielectric (DMD) stacks. The designing method is derived from the theory of optical film characteristic matrix. admittance loci adjusted achieve similar spectral properties s- p-polarized light incidence. Different structures designed non-polarizing different angles method. results...
Mo metal back contacts for CIGS solar cells have been reviewed. The electrical resistivity, reflectance and adhesive properties of thin films are affected strongly by the film deposition parameters. A with low resistivity good adhesion can be obtained through two-step process. This bilayer formed different structures depending on working pressure. MoSe<sub>2</sub> layer at CIGS/Mo interface changes hetero-contact from Schottky-type contact to ohmic-type contact. It also improves between...
A reaction chamber of atomic layer deposition (ALD) was developed for simultaneous coating on the inner and outer surfaces a large-size strongly curved glass bowl. The surface ALD process in showerhead mode cross-flow mode. Blue reflection (BR) film 400 nm wavelength broadband antireflection (BBAR) 400-700 were coated different bowls by ALD. spectral uniformity both studied. measured spectra at multiple positions bowl with BBAR show better along circumference than depth. deviation is mainly...
The introduction of orthogonal frequency division multiplexing (OFDM) and multiple input output (MIMO) technology enables the new generation Internet Vehicles to have ability integrate wireless communication target tracking. Based on Vehicles, a cooperative convolutional neural network with data-importance-aware (DIA) is proposed.We use channel state information (CSI) construct micro Doppler feature data set. A distributed collaborative machine learning method DIA proposed realize...
The growing attention to solar energy has motivated the development of highly efficient absorbers. In this study, a high-performance meta-structure absorber (MSSA) based on tungsten truncated cone structure combined with film resonator been proposed and demonstrated numerically. designed exhibits over 97.1% total absorption efficiency less than 8.5% thermal emissivity under condition one concentration, hence reaching 91.6% photothermal conversion at 100 °C. addition, MSSA achieves...
Silver films (Ag) and silver—gold (Ag—Au) with thickness ∼15 nm are coated on Bk7 glasses through thermal evaporation. After doping gold of 5.2%, the grain size Ag film reduces from 13.6 to 9.1 nm, also surface roughness decreases 1.45nm 0.94nm. A UV lamp is used as irradiation light source accelerate corrosion process in atmosphere. 17h irradiation, pure silver turns dark, transmittances reduce 350 500 while Ag—Au degrades much less, almost negligibly after radiation. Additional x-ray...
Dual-band-pass filters are key optical components in dual-spectral detection applications; it is imperative to fabricate them a relatively simple way for practical use. In this paper, dual-band-pass filter working short-wavelength infrared developed by the combination of two Fabry-Perot (F-P) filters, each having transparent band. These designed separately, and deposited at different sides substrate. The total layers' number limited 34; these layers monitored method direct transmittance...