Results 181 to 190 of about 70,205 (364)

Angle‐ and Polarization‐Tolerant Metasurface Designs Based on the Aperiodic Tiling

open access: yesAdvanced Optical Materials, EarlyView.
A novel aperiodic metasurface design is introduced to mitigate the inherent angle and polarization sensitivity of conventional metasurfaces. By employing a recently discovered aperiodic tiling approach, identical elliptical scatterers are arranged with systematic variations in their spacing and orientation, effectively minimizing spectral reflectance ...
Minyeul Lee, Suwan Jeon, Jonghwa Shin
wiley   +1 more source

Loss‐induced phase transition in mid‐infrared plasmonic metamaterials for ultrasensitive vibrational spectroscopy

open access: yesInfoMat, Volume 4, Issue 12, December 2022., 2022
Metamaterials provide unique opportunities for exciting sensing functionalities and applications, while suffering from severe performance limitations due to noise interference and design constraints. By subtly controlling and integrating different Fano‐resonant phases, a dual‐phase strategy is developed to breakthrough these limitations.
Hong Zhou   +4 more
wiley   +1 more source

Manipulation of acoustic focusing with an active and configurable planar metasurface transducer [PDF]

open access: gold, 2014
Jiajun Zhao   +5 more
openalex   +1 more source

Active Formation of Friedrich–Wintgen Bound States in the Continuum in a Hybrid Plasmonic–Photonic Structure

open access: yesAdvanced Photonics Research, EarlyView.
A method is proposed for actively generating Friedrich–Wintgen bound state in the continuum (FW BIC) in a hybrid plasmonic–photonic structure near the commercially important communication wavelength. In addition, interactions between dark and bright modes can further form the FW BIC and support electromagnetically induced transparency‐like with maximum
Xiao‐Fei Yan   +4 more
wiley   +1 more source

Enhancement of piezoelectric energy harvesting for flexural waves by a metasurface-assisted phononic cavity

open access: yesResults in Physics
Piezoelectric energy harvesting of mechanical waves exhibits great potential applications in electricity generation for low-powered electronic devices.
Kai Wang   +6 more
doaj  

Gyromagnetically Induced Transparency of Metasurfaces [PDF]

open access: green, 2014
S. Hossein Mousavi   +4 more
openalex   +1 more source

Analysis of Band Effects in One‐Dimensional Periodic Lattices Using an Enhanced Homogenization Method

open access: yesAdvanced Photonics Research, EarlyView.
An enhanced homogenization method for periodic lattices, applicable to any asymmetrical multipart structures, is proposed. This method simplifies intricate gratings into slab waveguides, predicts guided‐mode resonances and bound states in the continuum, without relying on numerical methods.
Atefe Taheri, Mehrdad Shokooh‐Saremi
wiley   +1 more source

Investigating the Potential for Label‐Free Detection of Cell Apoptosis through Terahertz Nano‐Metasurfaces

open access: yesAdvanced Photonics Research, EarlyView.
This study demonstrates a label‐free optical method to monitor cells using a terahertz metasurface‐based biosensing platform. The obtained terahertz signal change for the cell‐contained nanoslots before and after external stimulus is analyzed in terms of transmittance and frequency shift, dynamically representing the cell apoptosis process.
Yeeun Roh   +4 more
wiley   +1 more source

Photoreconfigurable Metasurface for Independent Full-Space Control of Terahertz Waves

open access: yesSensors
We present a novel photoreconfigurable metasurface designed for independent and efficient control of electromagnetic waves with identical incident polarization and frequency across the entire spatial domain.
Zhengxuan Jiang   +3 more
doaj   +1 more source

Spatially Controlled Optical Vortex Generation Using Low‐Loss Antimony Telluride Metasurfaces

open access: yesAdvanced Photonics Research, EarlyView.
The spatially varying vortex beams with the customizable propagation trajectory and the controllable topological charge evolution are demonstrated using the Sb2Te3‐based plasmonic metasurfaces. Benefiting from the dispersion‐free property of the Pancharatnam–Berry phase and the broadband response of polarization conversion efficiency of the nanobrick ...
Chengsen Yang   +11 more
wiley   +1 more source

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