Results 91 to 100 of about 45,828 (171)

Engineering Thermal Emission with Enhanced Emissivity and Quality Factor Using Bound States in the Continuum and Electromagnetically Induced Absorption

open access: yesAdvanced Optical Materials, EarlyView.
A metal‐based thermal metasurface supporting bound states in the continuum is demonstrated and experimentally shown to achieve a record‐high quality factor of 202 and high emissivity of 0.82. The design offers thermally stable, narrowband mid‐infrared emission, making it ideal for high‐precision gas sensing applications.
Guodong Zhu   +8 more
wiley   +1 more source

Tailoring Optical and Vibrational Properties by Bond Confinement: The Case of Metavalent Chalcogenide and Pnictogen Thin Films

open access: yesAdvanced Optical Materials, EarlyView.
This perspective explores how intrinsic confinement effects in metavalent chalcogenide and pnictogen thin films alter optical and vibrational properties. By comparing thickness‐dependent effects across prototypical systems, this work highlights the role of unconventional bonding in shaping coherent phonon dynamics and dielectric functions, offering new
Felix Hoff, Matthias Wuttig
wiley   +1 more source

Plasmonic Metasurfaces with Structural Chirality and Pseudo‐Chirality for Enhanced Circular Dichroism and Enantiomeric Recognition

open access: yesAdvanced Optical Materials, EarlyView.
A planar plasmonic metasurface composed of asymmetric gold nanostructures is shown to exhibit both anisotropic and chiral/pseudo‐chiral optical responses. By tailoring the polarization and angle of incidence, the metasurface significantly enhances optical chirality and enables enantiospecific detection.
Giovanna Palermo   +8 more
wiley   +1 more source

Multipolar Resonances in Electro‐Optic Metasurfaces with Moderate Refractive Index

open access: yesAdvanced Photonics Research, EarlyView.
Electro‐optic nanoantennas with moderate refractive indices of 2.3 to 3.0 are numerically shown to sustain strong multipolar resonances, enabling efficient light confinement and EO tuning. Multipolar modes of even parity are most sensitive to variations in the refractive index.
Viktoriia E. Babicheva   +1 more
wiley   +1 more source

Molecular Simulation of Functionalized Covalent Organic Framework Membranes for Inorganic Salt Separation

open access: yesAdvanced Theory and Simulations, EarlyView.
Six functionalized TpPa‐based covalent organic frameworks (COFs) are characterized using nonequilibrium molecular dynamics simulations to assess water permeance and salt rejection. The TpPa‐SO3H COF membrane achieves the highest sodium sulfate rejection (>98%) while maintaining relatively high water permeance compared to commercial nanofiltration ...
Grace Wei   +3 more
wiley   +1 more source

In vivo imaging of the barrier properties of the glia limitans during health and neuroinflammation. [PDF]

open access: yesNat Commun
Hélie-Legoupil P   +17 more
europepmc   +1 more source

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