Results 231 to 240 of about 18,077,336 (357)

Molecular Communications in Viral Infections Research: Modelling, Experimental Data and Future Directions

open access: green, 2020
Michael Taynnan Barros   +6 more
openalex   +2 more sources

Topology Optimization Enables Freeform Matrix Fourier Optics

open access: yesAdvanced Optical Materials, EarlyView.
A topology‐optimized freeform metasurface is designed and fabricated to realize matrix Fourier optics, enabling the diffraction of multiple polarization states into distinct far‐field orders. By combining forward design with gradient‐based inverse optimization, high polarization contrast of up to 98.7% is achieved.
Yu‐Tzu Liu   +5 more
wiley   +1 more source

Enhanced THz Emission From Ultrathin Ta/Fe/Pt Spintronic Trilayers

open access: yesAdvanced Optical Materials, EarlyView.
Ultrathin Ta/Fe/Pt spintronic trilayers on MgO(100) substrates generate intense terahertz (THz) emission under femtosecond laser pulse excitation. Constructive interference of the emitted THz waves from Ta and Pt layers is maximized through crystallographic engineering of the Ta layer into a high‐resistivity fcc phase and optimization of the trilayer ...
Evangelos Th. Papaioannou   +8 more
wiley   +1 more source

Broadband Measurement and Tuning of the Volatile Thermo‐Optic Properties in Chalcogenide Phase Change Materials

open access: yesAdvanced Optical Materials, EarlyView.
Chalcogenide phase change materials (PCMs) demonstrate a significant switchable volatile thermo‐optic response across visible and telecommunication bands. A broadband measurement is presented showing that some alloys exceed traditional reconfigurable materials in photonic integrated circuit (PIC) applications.
Mahirah Zaini   +6 more
wiley   +1 more source

Molybdenum‐Doped Nickel Oxide as an Advanced Ion Storage Layer for Highly Stable and Durable Flexible Electrochromic Devices

open access: yesAdvanced Optical Materials, EarlyView.
An optimized Mo‐doped NiO (MNO) film is developed using a magnetron sputtering process to overcome the limitations of pristine NiO in electrochromic (EC) applications. The MNO film exhibits improved optical modulation, faster response time, and enhanced cycling stability compared to pristine NiO.
Chang‐Shin Park   +7 more
wiley   +1 more source

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