23 Result(s)
within
Physics
Optical and Electronic Materials
**-Wei Sun
Article
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Article
Fabrication of graphene oxide-modified chitosan for controlled release of dexamethasone phosphate
Functionalized graphene oxide with its unique physical and chemical properties is widely applied in biomaterials, especially in drug carrier materials. In the past few years, a number of different drugs have b...
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Effect of external applied steady magnetic field on the morphology of laser welding joint of 4-mm 2024 aluminum alloy
Additional external steady magnetic fields were applied to investigate the influence of a steady magnetic field aligned perpendicular to the welding direction during laser beam welding of 2024 aluminum alloy....
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One-step hydrothermal synthesis of visible-light-driven In2.77S4/SrCO3 heterojunction with efficient photocatalytic activity for degradation of methyl orange and tetracycline
The In2.77S4/SrCO3 heterojunction photocatalyst had been prepared by one-step hydrothermal method. X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectrometry, UV–Vis diffuse reflectance...
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Simulation and experimental investigations of thermal degradation of polystyrene under femtosecond laser ablation
In the present work, the underlying mechanisms of femtosecond laser ablation of atactic polystyrene with a molecular weight of 10,000 g/mol are elucidated by large-scale molecular dynamics simulations, with an...
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Open AccessInterference-assisted kaleidoscopic meta-plexer for arbitrary spin-wavefront manipulation
Achieving simultaneous polarization and wavefront control, especially circular polarization with the auxiliary degree of freedom of light and spin angular momentum, is of fundamental importance in many optical...
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Open AccessWide-field auroral imager onboard the Fengyun satellite
The newly launched Fengyun-3D (FY-3D) satellite carried a wide-field auroral imager (WAI) that was developed by Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences (CIOMP), w...
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Open AccessFull-colour nanoprint-hologram synchronous metasurface with arbitrary hue-saturation-brightness control
The colour gamut, a two-dimensional (2D) colour space primarily comprising hue and saturation (HS), lays the most important foundation for the colour display and printing industries. Recently, the metasurface ...
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Open AccessPerturbative countersurveillance metaoptics with compound nanosieves
The progress of metaoptics relies on identifying photonic materials and geometries, the combination of which represents a promising approach to complex and desired optical functionalities. Material candidate o...
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Open AccessMeasuring a dynamical topological order parameter in quantum walks
Quantum processes of inherent dynamical nature, such as quantum walks, defy a description in terms of an equilibrium statistical physics ensemble. Until now, identifying the general principles behind the under...
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Microstructure and properties of Al2O3-ZrO2-Y2O3 coatings during high temperature and thermal shock resistance
Al2O3-ZrO2 composite coatings were fabricated by plasma spraying Al2O3-ZrO2 composite powders with and without Y2O3 addition to learn the influence of Y2O3 on high temperature stability of the coating. The two co...
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Effect of melt-spinning speed on the microstructure and magnetic properties of Al–Cu–Fe alloy-doped SmCo5 ribbons
Multielement alloy do** is the feature of this paper, and disclosing the relationship between non-equilibrium microstructure and magnetic properties after rapid cooling is the key point. 3 wt% eutectic Al82.8Cu
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Open AccessHigh-performance quasi-2D perovskite light-emitting diodes: from materials to devices
Quasi-two-dimensional (quasi-2D) perovskites have attracted extraordinary attention due to their superior semiconducting properties and have emerged as one of the most promising materials for next-generation l...
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Extending and lowering bandgaps by cross-like beams phononic crystals with perforation
Aiming at the problem of low-frequency vibration and noise control in the engineering applications, a new two-dimensional phononic crystal consisting of cross-like copper beams embedded in silicon rubber plate...
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The low-frequency bandgap characteristics of a new three-dimensional multihole phononic crystal
The development of sub-wavelength acoustic metamaterials such as local resonance phononic crystals is leading new research directions of elastic wavefront control as well as noise attenuation and vibration red...
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Effect of Sc, V, Zr, and Hf do** on the mechanical properties of TiB3 under high pressure
The influence of 3d-Sc, 3d-V, 4d-Zr, and 5d-Hf do** on the mechanical properties of the TiB3 has been investigated in the pressure range of 0–200 GPa by using first-principles calculations. On the basis of veri...
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Open AccessA metasurface-based light-to-microwave transmitter for hybrid wireless communications
Signal conversion plays an important role in many applications such as communication, sensing, and imaging. Realizing signal conversion between optical and microwave frequencies is a crucial step to construct ...
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Open AccessIdeal nodal rings of one-dimensional photonic crystals in the visible region
Three-dimensional (3D) artificial metacrystals host rich topological phases, such as Weyl points, nodal rings, and 3D photonic topological insulators. These topological states enable a wide range of applicatio...
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Development of the new interatomic potentials for the wurtzite phase of ZnO
A new set of interatomic potentials combining the Morse and Born–Mayer forms is developed via the empirical fitting and ab initio energy surface fitting for the wurtzite phase of ZnO. The fitting values are ex...
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Prediction of the pressure-induced phase transition, mechanical properties, and electronic structures for ScB4 via first principle calculations
The structural phase transition, phase stability, mechanical properties, and electronic structures of ScB4 are investigated in the pressure range of 0–100 GPa via first principle calculations. A new ground-state ...
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Open AccessExperimental verification of generalized eigenstate thermalization hypothesis in an integrable system
Identifying the general mechanics behind the equilibration of a complex isolated quantum system towards a state described by only a few parameters has been the focus of attention in non-equilibrium thermodynam...
