Results 161 to 170 of about 130,971 (229)

Space-Time Coding Conformal Metasurfaces for Multifrequency Beam Steering and Shaping. [PDF]

open access: yesAdv Mater
Pepe F   +8 more
europepmc   +1 more source

Sparse‐Aperture Quasi‐Achromatic Spintronic Terahertz Emitter Enabled by Binary‐Phase Metasurface and Multi‐Spectral Intensity Optimization

open access: yesNanophotonics, Volume 15, Issue 19, 13 October 2026.
We propose a sparse‐aperture shared‐aperture design with multispectral intensity optimization, enabling a Pt/W binary‐phase metasurface directly integrated with a spintronic emitter. The device achieves quasi‐achromatic focusing across 1.0–1.5 THz, with intensity fluctuation below 33% and edge preservation above 0.68.
Wenkai Qiu   +6 more
wiley   +1 more source

Programmable Multidimensional Diffraction Engineering via an Optically Addressed Nested Fourier Metasurface [PDF]

open access: yesNanophotonics
An optically addressed nested Fourier metasurface is presented for programmable multidimensional diffraction routing without electrical interconnects. Local Fourier‐mode engineering combined with global superlattice diffraction enables on‐demand reconfigurable routing.
Guo J   +11 more
europepmc   +2 more sources

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

open access: yesAdvanced Materials, Volume 38, Issue 56, 8 October 2026.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son   +20 more
wiley   +1 more source

Optically Programmable GST Metasurface for Coded Terahertz Wavefront Control. [PDF]

open access: yesAdv Mater
Guo G   +9 more
europepmc   +1 more source

Defect‐Templated Phase Engineering in Atomically Thin Metals

open access: yesAdvanced Materials, Volume 38, Issue 58, 16 October 2026.
Graphene defects are transformed from passive imperfections into programmable templates for phase‐selective growth of atomically thin silver. Plasma‐generated boundary defects favor Ag(1), whereas sp3‐rich zero‐layer graphene promotes Ag(2). This defect‐directed intercalation links local graphene chemistry to crystalline phase, electronic structure ...
Arpit Jain   +25 more
wiley   +1 more source

Thermally Reconfigurable Metasurfaces: From Linear Wavefront Control to Nonlinear and Chemical Functionality. [PDF]

open access: yesNano Lett
Karaman OC   +6 more
europepmc   +1 more source

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