Results 51 to 60 of about 25,634 (258)

Recent Advances in Plasma‐Enhanced Atomic Layer Etching for Next‐Generation Nanofabrication

open access: yesAdvanced Materials Interfaces, EarlyView.
Continued semiconductor miniaturization demands atomic‐scale patterning and ultralow surface roughness beyond the capabilities of conventional reactive ion etching. This review highlights advances in isotropic and anisotropic plasma‐enhanced atomic layer etching since 2020, covering fundamental mechanisms, applications across major semiconductor ...
Shih‐Nan Hsiao
wiley   +1 more source

Recent Advances in Reconfigurable Metasurfaces: Principle and Applications

open access: yesNanomaterials, 2023
Metasurfaces have shown their great capability to manipulate electromagnetic waves. As a new concept, reconfigurable metasurfaces attract researchers’ attention.
Ziyang Zhang   +7 more
doaj   +1 more source

In Situ Two‐Dimensional Residual Stress Characterization of Thin Films

open access: yesAdvanced Materials Technologies, EarlyView.
An integrated in situ curvature metrology platform combining speckle‐based curvature optical metrology (SCOM) with multi‐beam optical sensors (MOS) enables spatially resolved two‐dimensional curvature mapping of thick sputtered coatings. The SCOM technique provides excellent agreement with MOS while providing an extended measurable curvature range ...
Wai Jue Tan   +6 more
wiley   +1 more source

A review of light‐controlled programmable metasurfaces for remote microwave control and hybrid signal processing

open access: yesEngineering Reports, 2023
Programmable metamaterials and metasurfaces have gained great interest due to real‐time electromagnetic control and digital information processing capabilities. Different from traditional electrically‐controlled programmable metasurfaces, recently, light‐
Xin Ge Zhang   +3 more
doaj   +1 more source

Advanced material platforms for holographic applications of photonic metasurfaces [PDF]

open access: yes
Metasurface holographic applications such as imaging, sensing, data encryption and biophotonics are promising for more advanced photonic devices. However, most prevailing material platforms are constrained to rigid substrates with transparency windows at
Biabanifard Hossein Abadi, Mohammad
core   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

open access: yesAdvanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting   +5 more
wiley   +1 more source

Harmonic information transitions of spatiotemporal metasurfaces

open access: yesLight: Science & Applications, 2020
Metamaterials: Heightened harmonics from moving metasurfaces The generation of light harmonics by rapidly-changing metasurfaces could provide exciting new methods of information processing.
Haotian Wu   +6 more
doaj   +1 more source

Metasurfaces for photochemistry

open access: yes
As society transitions away from fossil fuels to renewable energy sources we will need to find new ways to generate fuels and feedstocks. Solar light-driven reactions could be harnessed to generate renewable fuels and chemicals with net-zero emissions at
Fusco, Zelio   +4 more
core   +1 more source

Photoluminescence Reshaping via Structural Confinement and Local Density of Optical States Control in Ir(III)‐Doped Biodegradable Metasurfaces

open access: yesAdvanced Materials Technologies, EarlyView.
Phosphorescent biodegradable metasurface showing vibronic selection and spectral photoluminescence narrowing. Anti‐correlation between experimental LDOS and measured lifetimes. ABSTRACT Metasurfaces incorporating phosphorescent emitters offer a route to engineer radiative and vibronic processes beyond chemical design.
Vincenzo Caligiuri   +11 more
wiley   +1 more source

Metasurfaces for Divergent Beams and Large-Area Metasurfaces

open access: yes, 2021
We will give an overview of our recent work on the design and fabrication of metasurfaces, i.e., dense arrays of subwavelength-sized scatterers (meta-atoms) designed in shape, size, position, and orientation.
Andr\ue9n, Daniel   +4 more
core  

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