Results 201 to 210 of about 919,980 (236)

Full‐Space Terahertz Airy Beam Shaping via Composite Bilayer Metasurface With Switchable Amplitude–Phase Encoding Channels

open access: yesNanophotonics, Volume 15, Issue 21, 12 November 2026.
A composite bilayer metasurface integrates linear‐polarization amplitude–phase modulation with circular‐polarization Pancharatnam–Berry phase modulation, enabling multidimensional terahertz Airy beam manipulation within a single compact aperture. The highly integrated platform supports diverse Airy beam generation and offers new opportunities for ...
Yunting Bai   +9 more
wiley   +1 more source

Cracking the Code: Which Ocular Symptoms Predict Dry Eye Signs? Insights From a Large International Sicca Registry

open access: yesArthritis Care &Research, Volume 78, Issue 11, Page 1679-1690, November 2026.
Objective The study aimed to identify symptom‐based predictors of dry eye disease (DED) signs in the Sjögren's International Collaborative Clinical Alliance (SICCA) cohort. Methods We performed a retrospective analysis examining 16 ocular symptoms (most graded 0–4) and artificial tear (AT) use (graded 0–3) as predictors of DED signs (abnormal ocular ...
Pragnya R. Donthineni   +7 more
wiley   +1 more source

Adaptive optics in the mouse eye: wavefront sensing based vs. image-guided aberration correction. [PDF]

open access: yesBiomed Opt Express, 2019
Wahl DJ   +8 more
europepmc   +1 more source

Quantifying Nighttime Gravity Wave‐Driven Mesosphere‐Ionosphere Coupling Over CONUS Using NASA AWE Radiance and GNSS TEC Observations

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract We present the first coordinated study of nighttime mesosphere‐ionosphere coupling over the continental United States (CONUS) from January through November 2024 using NASA Atmospheric Waves Experiment (AWE) airglow measurements near 87 km and GNSS Total Electron Content observations near 300 km.
Sreelekshmi Radhakrishnan Girijakumary   +1 more
wiley   +1 more source

All‐Optical Dual‐Angle Diffractive Neural Networks for 2D Direction‐of‐Arrival Estimation

open access: yesNanophotonics, Volume 15, Issue 20, 27 October 2026.
A diffractive neural network with an integrated spatial encoder resolves the direction of an incoming terahertz signal entirely through optical propagation. After the signal passes through the cross‐shaped input and two 3D‐printed diffractive layers, two detector arrays read its two incident angles simultaneously.
Chenjie Xiong   +8 more
wiley   +1 more source

Reconfigurable Light Field Generation With Hologram‐Enhanced Multicore Fibers

open access: yesNanophotonics, Volume 15, Issue 20, 27 October 2026.
A novel metafiber platform enables reconfigurable generation of structured light patterns directly at the end of a multicore optical fiber. A 3D‐printed hologram maps individual fiber cores onto predefined image elements, allowing programmable pattern synthesis through selective core excitation.
Mohammadhossein Khosravi   +10 more
wiley   +1 more source

Interferometric Near‐Field Scanning Optical Microscopy via Phase Conjugation of a Multimode Fiber Probe

open access: yesNanophotonics, Volume 15, Issue 20, 27 October 2026.
A multimode fiber probe collects far more of the near field than a single‐mode one, but scrambles the phase into speckle. Phase conjugation on a spatial light modulator restores the wavefront, concentrating the signal up to 165‐fold at a single detector pixel and recovering the full phase of propagating surface plasmon polaritons where conventional ...
Juntaek Oh   +4 more
wiley   +1 more source

Neural Adjoint Inverse Design of Three‐Dimensional Nanophotonic Devices

open access: yesNanophotonics, Volume 15, Issue 20, 27 October 2026.
A stage‐wise Fourier neural operator is trained on FDTD adjoint gradients of volumetric meta‐optics, each stage refining residuals under progressively enlarged Fourier‐mode cutoffs. Given any permittivity volume, the model reconstructs the 3D gradient field, from coarse envelope to resonance peaks, within a second, driving inverse design to 86–99% of ...
Chanik Kang   +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

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