Results 121 to 130 of about 21,242 (251)

Sub‐100 Nanometer Focusing of Hard X‐rays Using SU‐8 Compound Kinoform Focusing Lenses

open access: yesAdvanced Photonics Research, Volume 7, Issue 4, April 2026.
A novel aberration‐free X‐ray compound refractive lens design based on Cartesian oval curve is presented. Achieving a vertical focal spot size of 70.8 nm using knife‐edge scanning with a 200 μm incident aperture. Wavefront reconstruction via knife‐edge imaging further resolves a refined focal spot of 56 nm.
Yuanze Xu   +12 more
wiley   +1 more source

Systematic Performance Analysis of a Propagation‐Type Metalens Under Practical Fabrication Imperfections

open access: yesAdvanced Photonics Research, Volume 7, Issue 4, April 2026.
Metalenses based on dielectric metasurfaces have emerged as a powerful platform for realizing compact and multifunctional optical systems. However, the optical performance of practical devices is influenced by fabrication imperfections inherent to nanomanufacturing processes, which cause deviations from ideal design parameters.
Zhendong Luo   +5 more
wiley   +1 more source

Electromagnetic Perception With Artificial Intelligence‐Empowered Programable Metasurface: From Data‐Driven Imaging to Semantic Sensing

open access: yesAdvanced Photonics Research, Volume 7, Issue 4, April 2026.
This review chronicles the evolution of intelligent electromagnetic (EM) perception systems empowered by metasurfaces and artificial intelligence. The progression from data‐driven imaging with implicit priors to semantic sensing with explicit priors is systematically reviewed.
Xingrui Zhou   +5 more
wiley   +1 more source

Mesoscale Recovery of Microglial and Neuronal Dynamics After Craniotomy Across Wide Cortex in Transgenic Mice

open access: yesAdvanced Science, Volume 13, Issue 23, 23 April 2026.
This study employs longitudinal fluorescence imaging in transgenic mice to map post‐craniotomy cortical recovery. We identify distinct neuroimmune recovery phases: microglial structural inflammation peaks at ∼10 days, neuronal structural intensity peaks at ∼14 days and correlates with microglial activity, and functional network modularity is most ...
Guihua Xiao   +13 more
wiley   +1 more source

Quantitative Stain Mapping in X‐Ray Virtual Histology

open access: yesAdvanced Science, Volume 13, Issue 21, 13 April 2026.
Virtual histology promises 3D tissue examination without physical sectioning, yet has lacked the tissue‐specificity of conventional pathology. This work demonstrates the first quantitative three‐dimensional stain mapping at histologically relevant resolution, separating contrast agent from tissue to reveal cellular features such as nuclei. The approach
Dominik John   +16 more
wiley   +1 more source

Incoherent Digital Holography Empowered by Wavefront and Information Engineering: A Review

open access: yesAdvanced Photonics Research
Incoherent digital holography (IDH) is a technique used to create holograms with a spatially incoherent light source. This technique has unlocked the potential of holography and expanded its applications to 3D fluorescence microscopy and 3D imaging under
Teruyoshi Nobukawa
doaj   +1 more source

Aspherical Surface Measurement With Multi-Directional Lateral Shearing Phase-Shifting Interferometry

open access: yesIEEE Photonics Journal
Lateral shearing interferometry is an effective method for directly measuring the depth gradient of aspherical surfaces. To address the low phase reconstruction accuracy resulting from the fact that lateral shear interferometers typically obtain only two
Yahui Zhu   +3 more
doaj   +1 more source

Diamond Metasurface‐Based Optical Tweezers With Enhanced Robustness

open access: yesAdvanced Science, Volume 13, Issue 19, 2 April 2026.
Conventional metasurface optical tweezers are hindered by thermal instability from laser heating. This work overcomes this by using diamond metasurfaces, exploiting their low thermo‐optic coefficient and minimal thermal expansion. The platform demonstrates stable particle trapping, translocation, and rotation, enabling robust miniaturized systems for ...
Jing‐Yuan Zhu   +8 more
wiley   +1 more source

Quantitative phase imaging based on holography: trends and new perspectives

open access: yesLight: Science & Applications
In 1948, Dennis Gabor proposed the concept of holography, providing a pioneering solution to a quantitative description of the optical wavefront.
Zhengzhong Huang, Liangcai Cao
doaj   +1 more source

Real‐Time, Label‐Free Classification of Cell Death Pathways via Holotomography‐Based Deep Learning Framework

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 4, April 2026.
A 3D holotomography system coupled with a deep learning model distinguishes how cells die—apoptosis, necroptosis or necrosis—without any fluorescent labels. Training on refractive index maps of HeLa cells yields 97% accuracy and flags necroptosis hours before chemical dyes.
Minwook Kim   +8 more
wiley   +1 more source

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