Results 151 to 160 of about 130,971 (229)

Toroidal Dipole‐Dominated High‐Performance Optical Sensors via Nanoimprinted Tetramer Architectures

open access: yesNanophotonics, Volume 15, Issue 20, 27 October 2026.
We developed a scalable low‐cost nanoimprinted tetramer architecture (NTA) sensor using two‐step nanoimprint lithography. It comprises polystyrene nanopillar tetramer arrays on a PS waveguide and gold mirror, supporting a toroidal‐dipole‐mediated resonant mode at 810 nm with a simulated Q of 3124.
Hongsen Zhao   +8 more
wiley   +1 more source

Programmable calculus operations in electromagnetic space using space-time-coding metasurface. [PDF]

open access: yesNatl Sci Rev
Shi HT   +9 more
europepmc   +1 more source

Conversion of Spin‐Orbit‐Coupled Optical Vortices via Complex Coupling

open access: yesNanophotonics, Volume 15, Issue 20, 27 October 2026.
A four‐step Floquet protocol in a straight terahertz waveguide array uses metallic separators to selectively control interwaveguide coupling. The resulting angular‐momentum‐dependent coupling enables Floquet engineering of OAM states, giving rise to corner states, conversion between opposite total‐angular‐momentum states, and edge states.
Jinze Gao   +3 more
wiley   +1 more source

Arbitrary Wavefront Manipulation in Real Space and Momentum Space Based on Elliptical Structures

open access: yesNanophotonics, Volume 15, Issue 19, 13 October 2026.
Leveraging elliptical structures—while preserving real space arbitrary wavefront manipulation—we generalize the manipulation to momentum space rather than only sustaining topological singularities. Multifunctional integrated outputs, such as beam deflection and focusing, can be flexibly achieved in the near–infrared communication band, and the ...
Siqi Chang   +4 more
wiley   +1 more source

Programmable radio-frequency calculations in electromagnetic-wave domain. [PDF]

open access: yesNat Commun
Chen SN   +11 more
europepmc   +1 more source

Deep Reinforcement Learning Inverse Design of Dielectric Metasurfaces Supporting Dual Quasi‐BIC Resonances

open access: yesNanophotonics, Volume 15, Issue 19, 13 October 2026.
A deep reinforcement‐learning framework designs dielectric metasurfaces supporting dual quasi‐BIC resonances under tightly coupled multi‐objective constraints. By combining D3QN, rollout‐based lookahead, reward normalization, and prioritized replay, the method stabilizes the optimization of the resonance wavelength, quality factor, and near‐field ...
Ruixin Luo   +8 more
wiley   +1 more source

All-optical control of nonlinear emission from resonant metasurfaces. [PDF]

open access: yesSci Adv
Yang Z   +13 more
europepmc   +1 more source

Reprogrammable Bistable Metasurface for Arbitrary Electromagnetic Wave Manipulation. [PDF]

open access: yesAdv Mater
Han D   +8 more
europepmc   +1 more source

Polarization‐Multiplexed Double‐Helix/Airy Metalens for Depth‐Resolved Texture Imaging With Extended Depth‐of‐Field

open access: yesNanophotonics, Volume 15, Issue 19, 13 October 2026.
To address the trade‐off between depth discriminability and texture preservation in PSF‐engineered imaging, a polarization‐multiplexed metalens is developed to decouple depth estimation from extended‐depth‐of‐field texture acquisition. The DH‐derived depth guides depth‐matched Airy PSF selection for non‐blind texture recovery, while computational ...
Xinyi Tian   +12 more
wiley   +1 more source

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