Results 61 to 70 of about 28,100 (252)
Vectorial-Holography metasurface empowered by Orthogonality-Simplified Machine learning
Materials & Design, 2022 Metasurfaces can provide unprecedented degree of freedom in manipulating electromagnetic waves and have been introduced to holography. Aiming to explore the full capability for information presentation, vectorial metasurface holography is sprung up ...
Ruichao Zhu +9 more
doaj +1 more source
Extreme‐Thickness Meta‐Membrane for Controlling Terahertz Vectorial Beams
Advanced Science, EarlyView.We propose ultra‐thin (λ/30) transmissive terahertz metasurfaces combining near‐field resonant and detour phases in coupled‐slit meta‐atoms, enabling continuous phase and polarization control beyond conventional designs. Based on leaky‐mode theory, scalar and vectorial terahertz Bessel beams at 0.39 THz are experimentally demonstrated, with ...
Yufei Song +7 more
wiley +1 more source
Super‐Resolution and High‐Data‐Density Acoustic Meta‐Hologram via Amplitude and Phase Coupling
Advanced Science, EarlyView.A super‐resolution acoustic meta‐hologram utilizes amplitude‐phase coupling under energy conservation constraints to overcome the traditional diffraction limit. This conceptually advanced approach achieves high‐fidelity acoustic field reconstruction and dense information transmission, unlocking new potentials for high‐resolution acoustic imaging and ...
Xiao Guo +15 more
wiley +1 more source
Digital holography with arbitrary temporal phase-shifts and multiple wavelengths for shape measurement of rough surfaces [PDF]
, 2009 Paper DMC7, 3 S.A novel implementation of lensless multi-wavelength digital holography with arbitrary temporal phase-shifts is presented. The algorithm proposed by Cai et al.
Fratz, M. +4 more
core +1 more source
Advanced Science, EarlyView.A novel multifunctional additive for aqueous zinc‐ion battery electrolytes can simultaneously dynamically adjust the pH in microzones, regulate the solvation structure of Zn2+, protect the interface, and form a stable solid‐state SEI film. This approach enables a dendrite‐free zinc anode and demonstrates excellent cycling stability and cycle life ...
Lina Pan +5 more
wiley +1 more source
High resolution digital holographic synthetic aperture applied to deformation measurement and extended depth of field method [PDF]
, 2010 This paper discusses the potential of the synthetic-aperture method in digital holography to increase the resolution, to perform high accuracy deformation measurement, and to obtain a three-dimensional topology map.
Claus, Daniel
core +1 more source
Journal of High Energy Physics, 2003 We examine the extension of the Klebanov-Witten gauge/gravity correspondence away from the low-energy conformal limit, to a duality involving the full, asymptotically Ricci-flat background describing three-branes on the conifold. After a discussion of the nature of this duality at the string theory level (prior to taking any limits), we concentrate on ...
Amador, Xavier +3 more
openaire +2 more sources
Advanced Science, EarlyView.A “nutritional trap” strategy centered on disrupting bacterial iron homeostasis is proposed. The synthesized Bi‐TP@FU (TBF) can target Helicobacter pylori, interfere with the bacterial iron uptake and utilization processes to disrupt its iron homeostasis, induce bacterial death, and meanwhile preserve the balance of the intestinal flora.
Tianye Fang +13 more
wiley +1 more source
Holography in Sweden 2000 [PDF]
, 2000 Looking back on the earlier reports on Holography in Sweden, it is striking that not much has changed during the last decade. It is more or less the same people that have been active throughout this period. It is difficult to say if holography is loosing
Gustafsson, Jonny,
core
Computational sectioning and resolution enhancement in optical scanning holography [PDF]
, 2014 This paper overviews recent computational imaging techniques to increase the axial resolution and sectioning performance of optical scanning holography, including the use of a dual-wavelength source, double scanning, and configurable pupils.
Edmund Y. Lam, Lam, EY
core +1 more source