Results 11 to 20 of about 161,238 (304)
Frontiers in Physics, 2022 Monocapillary x-ray lenses (MXRLs) are mostly used as condensers in full-field transmission x-ray microscopy (TXM) based on synchrotron radiation or laboratory x-ray tubes.
Xuepeng Sun +12 more
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On the Design of Soret Zone Plates Based on Binary Sequences Using Directional Transducers
Sensors, 2021 In this work, we analyze the effect of the distribution of transparent Fresnel regions over the focusing profile of Soret Zone Plates (SZP) based on binary sequences. It is shown that this effect becomes very significant in those fields where directional
Pilar Candelas +2 more
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Single Layer Lift-Off of CSAR62 for Dense Nanostructured Patterns
Micromachines, 2023 Lift-off processing is a common method of pattern transfer for different nanofabrication applications. With the emergence of chemically amplified and semi-amplified resist systems, the possibilities for pattern definition via electron beam lithography ...
Hanna Ohlin, Thomas Frisk, Ulrich Vogt
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Optimization of Metal-Assisted Chemical Etching for Deep Silicon Nanostructures
Nanomaterials, 2021 High-aspect ratio silicon (Si) nanostructures are important for many applications. Metal-assisted chemical etching (MACE) is a wet-chemical method used for the fabrication of nanostructured Si.
Rabia Akan, Ulrich Vogt
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Author Correction: Towards Millimeter-wavelength: Transmission-Mode Fresnel-Zone Plate Lens Antennas using Plastic Material Porosity Control in Homogeneous Medium. [PDF]
Sci Rep, 2018 Pourahmadazar J, Denidni TA.
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Fractal generalized zone plates [PDF]
Journal of the Optical Society of America A, 2009 The construction of fractal generalized zone plates (FraGZPs) from a set of periodic diffractive optical elements with circular symmetry is proposed. This allows us to increase the number of foci of a conventional fractal zone plate (FraZP), keeping the self-similarity property within the axial irradiance.
Mendoza-Yero, Omel +5 more
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Design of Acoustic Bifocal Lenses Using a Fourier-Based Algorithm
Sensors, 2021 In this work, we develop a new design method based on fast Fourier transform (FFT) for implementing zone plates (ZPs) with bifocal focusing profiles. We show that the FFT of the governing binary sequence provides a discrete sequence of the same length ...
José Miguel Fuster +2 more
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Multifocal spectral diffractive lens [PDF]
Компьютерная оптика, 2018 We present a method for calculating a spectral multifocal diffractive lens that forms a given set of fixed-position foci at multiple operating wavelengths. It is based on minimizing a function represented as a squared absolute value of difference between
Leonid Doskolovich +2 more
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Micromachines, 2020 Zone plates are diffractive optics commonly used in X-ray microscopes. Here, we present a wet-chemical approach for fabricating high aspect ratio Pd/Si zone plate optics aimed at the hard X-ray regime.
Rabia Akan +7 more
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Journal of Materials Research and Technology, 2023 Accurate prediction of deformation behavior of metal plate in deformation zone is the key point for rolling cladding process. At present, there is a lack of accurate analytical model about the deformation of metal plate in deformation zone. Therefore, an
Lian-Yun Jiang +5 more
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