Results 241 to 250 of about 96,711 (321)

Optical Fiber Meta‐Tips Based on Partial‐Phase Control

open access: yesAdvanced Optical Materials, Volume 13, Issue 17, June 17, 2025.
Optical fibers working as beam splitters or focusing lens are demonstrated, with the aid of a metasurface integrated on the fiber end facet. Metasurfaces based on meta‐atoms featuring partial control of the phase are considered unleashing their potential.
Maria Principe   +5 more
wiley   +1 more source

Photochromic Organic–Inorganic Material for Focusable Adaptive Lenses Fabrication

open access: yesAdvanced Photonics Research, Volume 6, Issue 6, June 2025.
This study investigates a zirconia‐based hybrid organic–inorganic material incorporating dithienylethene molecules for adaptive optics. It offers excellent photochromic properties, thermal stability, and adjustable thickness, enabling effective refractive index modulation.
Giorgia Franchin   +6 more
wiley   +1 more source

Spatially Controlled Optical Vortex Generation Using Low‐Loss Antimony Telluride Metasurfaces

open access: yesAdvanced Photonics Research, Volume 6, Issue 6, June 2025.
The spatially varying vortex beams with the customizable propagation trajectory and the controllable topological charge evolution are demonstrated using the Sb2Te3‐based plasmonic metasurfaces. Benefiting from the dispersion‐free property of the Pancharatnam–Berry phase and the broadband response of polarization conversion efficiency of the nanobrick ...
Chengsen Yang   +11 more
wiley   +1 more source

Digitized Phase‐Change Material Heterostack for Transmissive Diffractive Optical Neural Network

open access: yesAdvanced Photonics Research, Volume 6, Issue 6, June 2025.
A phase‐change‐material‐based digitized heterostack is experimentally demonstrated and theoretically analyzed for future energy‐efficient, fast reconfigured, and compact transmissive diffractive optical neural networks. All‐optical and fully reconfigurable transmissive diffractive optical neural network (DONN) architectures emerge as high‐throughput ...
Ruiyang Chen   +3 more
wiley   +1 more source

Infrared detectors for wavefront sensing [PDF]

open access: yesProceedings of the Adaptive Optics for Extremely Large Telescopes 5, 2017
Stephane Lemarchand   +8 more
openaire   +1 more source

Imaging Photonic Resonances within an All‐Dielectric Metasurface via Photoelectron Emission Microscopy

open access: yesAdvanced Photonics Research, Volume 6, Issue 6, June 2025.
Photonic resonances within a dielectric metasurface are investigated using photoelectron emission microscopy (PEEM) and finite‐difference time‐domain simulations. An electron inelastic mean free path of 35 ± 10 nm is extracted from comparisons between microscopy and simulations.
Andrew R. Kim   +9 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

High‐Fidelity Computational Microscopy via Feature‐Domain Phase Retrieval

open access: yesAdvanced Science, Volume 12, Issue 21, June 5, 2025.
An innovative phase retrieval framework, termed FD‐PR, is uniquely established in the image's feature domain through the feature‐extracted, physical‐driven regression with interfaces for combining physics and image processing constraints. FD‐PR takes advantage of invariance components of an image against presences of model mismatch and uncertainty ...
Shuhe Zhang   +4 more
wiley   +1 more source

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