Results 11 to 20 of about 9,836,724 (331)
A metacontinuum model for phase gradient metasurfaces [PDF]
Scientific Reports, 2023 Acoustic metamaterials and metasurfaces often present complex geometries and microstructures. The development of models of reduced complexity is fundamental to alleviate the computational cost of their analysis and derivation of optimal designs. The main
Giorgio Palma, Umberto Iemma
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Polarization-Insensitive Beam Splitter with Variable Split Angles and Ratios Based on Phase Gradient Metasurfaces [PDF]
Nanomaterials, 2021 The beam splitter is a common and critical element in optical systems. Traditional beam splitters composed of prisms or wave plates are difficult to be applied to miniaturized optical systems because they are bulky and heavy.
Quan He, Zhe Shen
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Wideband RCS Reduction by Single-Layer Phase Gradient Modulated Surface [PDF]
Sensors, 2022 This paper deals with the design and fabrication of an unpretentious (single-layer, without any lump element) broadband (97%, 11.3–32.3 GHz) radar cross-section reduction (RCSR) modulated surface (MS).
Yousef Azizi +3 more
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Graphene-Enabled Tunable Phase Gradient Metasurface for Broadband Dispersion Manipulation of Terahertz Wave [PDF]
Micromachines, 2023 With the increasing demand for the miniaturization and flexibility of optical devices, graphene-based metasurfaces have emerged as a promising ideal design platform for realizing planar and tunable electromagnetic or optical devices.
Yin Zhang, Yijun Feng, Junming Zhao
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A Robust InSAR Phase Unwrapping Method via Phase Gradient Estimation Network
Remote Sensing, 2021 Phase unwrapping is a critical step in synthetic aperture radar interferometry (InSAR) data processing chains. In almost all phase unwrapping methods, estimating the phase gradient according to the phase continuity assumption (PGE-PCA) is an essential ...
Liming Pu +6 more
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Remote Sensing, 2022 Phase unwrapping (PU) is a key program in data processing in the interferometric synthetic aperture radar (InSAR) technique, and its accuracy directly affects the quality of final SAR data products.
Yansuo Zhang +5 more
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Quantitative phase gradient microscopy with spatially entangled photons [PDF]
Nature CommunicationsWe present an entanglement-based quantitative phase gradient microscopy technique that employs principles from quantum ghost imaging and ghost diffraction.
Yingwen Zhang +4 more
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Journal of Chromatography A, 2019 This work seeks to explore and understand the effects of column orientation and degree of modification of continuous stationary phase gradient columns under a mobile phase gradient using both simulations and experiments. Peak parameters such as retention times, peak widths and resolution are obtained for five phenolic compounds on a C18-silica gradient
Caitlin N Cain +2 more
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An Ultra-Wideband Reflective Phase Gradient Metasurface Using Pancharatnam-Berry Phase
IEEE Access, 2019 Designing a transmissive and reflective phase gradient metasurface (PGM) using Pancharatnam-Berry (PB) geometrical phase must be based on an appropriate metasurface, which can realize circular-polarization (CP)-conversion transmission and CP-maintaining ...
Baoqin Lin +5 more
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Phase and amplitude gradient waveguide coupled metasurfaces
Scientific ReportsThis paper presents a novel silicon-based metasurface-coated one-dimensional (1D) slab waveguide. The proposed idea can easily engineer and mold guided waves into any desired free-space mode and provide the wavefront control of optical metasurfaces, such
Yasaman Tanhayivash +2 more
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