Results 151 to 160 of about 48,622 (298)

Frozen Differential Scattering in Reconfigurable Complex Media

open access: yesLaser &Photonics Reviews, EarlyView.
A localized perturbation universally results in a rank‐one update of the scattering matrix of any complex medium. The resulting differential output wavefront is “frozen”: its spatial pattern is fixed (agnostic to the input wavefront). Experiments with a programmable‐metasurface‐parametrized wireless link validate frozen differential scattering and ...
Philipp del Hougne
wiley   +1 more source

Two‐Dimensional Transition Metal Dichalcogenides Properties Enhanced by Nano‐ and Micro‐Scale Shape Control

open access: yesMetalMat, EarlyView.
This review explores current strategies for shaping two‐dimensional transition metal dichalcogenides (TMDs) beyond their planar form. It highlights how strain engineering, nanopatterning, and growth on complex substrates modulate their mechanical, optical, and electronic properties.
C. Grazianetti   +6 more
wiley   +1 more source

Reactive Nanoparticle Composed Bilayers: An Alternate Route Toward the Production of Pt/Al Nanofoils

open access: yesSmall, EarlyView.
Spark ablation‐assisted gas phase electrodeposition is an alternate route toward Pt/Al self‐propagation reactive system synthesis. Pt film morphology‐dependent reaction kinetics is a significant advantage. Low spark power and gas flow rate produce porous films and slow speeds, while high power and flow rate give three orders of magnitude faster ...
Nishchay A. Isaac   +16 more
wiley   +1 more source

From Millimeters to Microns: A Hybrid Strategy for Reconfigurable Liquid‐Crystal Patterning

open access: yesSmall Methods, EarlyView.
A hybrid approach combining wide‐field exposure and direct laser writing is used to sculpt responsive polymer architectures in nematic liquid crystals. This method enables voltage‐tunable textures, channeling of topological defects, and hierarchical resolution control.
Adithya Pradeep   +9 more
wiley   +1 more source

Phase Hologram by Acoustic Metasurfaces

open access: yesSmall Structures, EarlyView.
This work has achieved a breakthrough in holographic communication, realizing phase holographic imaging. The proposed phase holographic concept overcomes the limitations of traditional amplitude holographic energy attenuation. The design of its amplitude compensation method further addresses the key challenge of phase holographic imaging clarity ...
Xiao Guo   +11 more
wiley   +1 more source

Framework for X‐ray mirror surface shape fitting

open access: yesJournal of Synchrotron Radiation, EarlyView.
The closed‐form expressions for elliptic cylinders, hyperbolic cylinders, ellipsoids, hyperboloids, and diaboloids used for X‐ray mirror surface shapes are summarized. Additionally, a four‐layer framework to fit the measured surface shape data in slope or height for convenient X‐ray mirror surface characterization is proposed.For accurate ...
Lei Huang   +9 more
wiley   +1 more source

Demonstration of a family of X‐ray dark‐field retrieval approaches on a common set of samples

open access: yesJournal of Synchrotron Radiation, EarlyView.
This study aims to guide users of dark‐field imaging in selecting the most suitable technique for their imaging goals. To this end, we provide a summary table and highlight opportunities for future research into the sources of dark‐field contrast across emerging methods.There are various imaging setups capable of capturing dark‐field images, each with ...
Samantha J. Alloo   +5 more
wiley   +1 more source

Theoretical framework for soft X‐ray Fourier transform spectroscopy using the Wigner function

open access: yesJournal of Synchrotron Radiation, EarlyView.
A theoretical framework for the propagation of partially coherent Gaussian radiation in a modified Mach–Zehnder interferometer designed for Fourier transform spectroscopy applications is presented.This work presents a theoretical framework for the propagation of partially coherent Gaussian radiation in a modified Mach–Zehnder interferometer designed ...
Chuzida Chen   +6 more
wiley   +1 more source

X‐ray waveguide optics at GINIX/P10 PETRA III: recent progress and future directions

open access: yesJournal of Synchrotron Radiation, EarlyView.
X‐ray waveguide optics enable spatial and coherence filtering of a nano‐focused synchrotron beam and provide tailored illumination wavefronts for holographic imaging. Progress in fabrication, characterization and advanced waveguide interferometers can enhance holographic imaging.Here we report on recent progress in X‐ray waveguide optics for full‐field
Tim Salditt   +8 more
wiley   +1 more source

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