Results 81 to 90 of about 22,235 (140)

Dual‐Band Metasurface‐Based Structured Light Generations for Futuristic Communication Applications

open access: yesSmall Science, EarlyView.
This study introduces a single‐cell‐driven dual‐band metasurface platform generating nondiffracting perfect vortex beams for Ultraviolet–Visible wavelengths. The metasurfaces, composed of silicon nitride nanoantennas, maintain high transmission efficiency across dual spectrums.
Muhammad Danial Shafqat   +11 more
wiley   +1 more source

Scalable Fabrication of Highly Organized, Horizontally Aligned Sub‐5 nm Silicon Nanowires via Chemical Vapor Etching

open access: yesSmall Science, EarlyView.
An unprecedented silicon nano/micro‐hierarchical architecture featuring sub‐5 nm quantum silicon nanowires (SiNWs) is achieved via a single‐step, catalyst‐free chemical vapor etching process. Using a simple micro‐patterning technique, a scalable strategy for fabricating highly ordered SiNWs/micro‐pit arrays is developed.
Juyeon Seo   +6 more
wiley   +1 more source

From Single to Multi‐Material 3D Printing of Glass‐Ceramics for Micro‐Optics

open access: yesSmall Methods, EarlyView.
This article explores advancements in two‐photon lithography (TPL) for fabricating high‐refractive‐index micro‐optics. It examines single and multi‐material 3D architectures in glass and ceramics (GLACEs), highlighting photoresin customization, critical fabrication conditions, and cross‐scale structural and optical characterization.
Joel Arriaga‐Dávila   +10 more
wiley   +1 more source

Laser Cleaning‐Assisted Femtosecond Laser Direct Writing of Diamond Antireflective Microstructures with Superhigh Transmittance of 94.5% at 10.6 μm

open access: yesSmall Structures, EarlyView.
A laser cleaning‐assisted femtosecond laser direct‐write processing technology for fabricating subwavelength antireflective microstructures on diamond is reported. This microstructure significantly improves the transmittance of diamond in the middle infrared and processes no significant angular dependence, which represent an important step in the field
He Cao   +12 more
wiley   +1 more source

Hierarchically Enhanced Plasmonic Absorber with Abundant Nanomirrors for Effective Photoelectrochemical Performance

open access: yesSmall Structures, EarlyView.
The nanomirror‐scheme nanocomposite of Ag/TiO2/(Au + Ag) nanoparticles nanorod arrays witness plasmonic coupling, absorption enhancement and electric field enhancement upon localized surface plasmon resonance effects and heterojunction establishment, with the hot electrons overcoming interfacial barrier and participating in the photoelectrochemical ...
Jiaqi Wang, Tongzhou Xu, Weipeng Wang
wiley   +1 more source

Recent Progress of Advanced Composites for Broadband Electromagnetic Wave Absorption

open access: yesSmall Structures, EarlyView.
This review summarizes the latest developments in multidimensional design strategies for broadband electromagnetic (EM) wave‐absorbing materials. The most significant recent advancements in 0D–3D materials toward the achievement of broadband EM wave absorption are thoroughly reviewed.
Zhiheng Wei   +4 more
wiley   +1 more source

Angle‐Tolerant Circular Eigenpolarizations Enabled by Orientational Disorder in Dielectric Metasurfaces

open access: yesAdvanced Optical Materials, Volume 13, Issue 10, April 4, 2025.
This study demonstrates that orientational disorder in all‐dielectric chiral bilayer metasurfaces suppresses linear birefringence and enables robust circular eigenpolarizations across wide angular and spectral ranges. Experimental and numerical results reveal significant circular dichroism and optical activity, highlighting the potential of disordered ...
Katsuya Tanaka   +10 more
wiley   +1 more source

Exciton Collimation, Focusing and Trapping Using Complex Transition Metal Dichalcogenide Lateral Heterojunctions

open access: yesAdvanced Optical Materials, Volume 13, Issue 10, April 4, 2025.
Controlling the motion of neutral excitons in optically active media is mandatory to the development of advanced circuits and devices for applications in excitonic. Transition Metal Dichalcogenide Lateral Heterojunctions allow advanced in‐plane control of the excitonic distribution and flux over large distances, and in particular exciton focalization ...
Hassan Lamsaadi   +17 more
wiley   +1 more source

Hybrid Plasmonic‐GeTe Active Metasurfaces with High Tunability

open access: yesAdvanced Photonics Research, Volume 6, Issue 4, April 2025.
A novel hybrid plasmonic‐germanium telluride (GeTe) metasurface has been developed, demonstrating tunable single‐peak on/off switching across the spectral range of 2.5–7.5 μm. This study integrates GeTe as part of the meta‐atoms with gold (Au), significantly reducing the amount of GeTe required while achieving substantial on/off contrast.
Hyeonggyun Kim   +5 more
wiley   +1 more source

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