Results 171 to 180 of about 11,788 (237)
This work presents a rigorous inverse design framework based on a discontinuous Galerkin time‐domain (DGTD) framework to handle arbitrary temporal variations in material properties. Our DGTD method is coupled with an advanced Bayesian optimization algorithm to design a realistic space‐time modulated silicon‐based metasurface that achieves nearly 80%$80\
Roman Gelly +2 more
wiley +1 more source
All-Dielectric Metasurface-Enhanced Fluorescence for Probing Mitochondrial Membrane Potential Dynamics. [PDF]
Luo X +5 more
europepmc +1 more source
Dynamic Plasmonic Metasurface Regulated by Drude‐Like Active Spacers
Optical properties of mirror‐coupled plasmonic metasurface are dynamically modulated by controlling intrinsic properties and geometric parameters of Drude‐like active spacers made of transparent conducting oxides and phase‐change materials. The resonance property of a hybrid plasmonic metasurface can be actively regulated by manipulating the ...
Alemayehu Nana Koya +2 more
wiley +1 more source
All-Dielectric Metasurface-Based Terahertz Molecular Fingerprint Sensor for Trace Cinnamoylglycine Detection. [PDF]
Xu Q, Sun M, Wang W, Shi Y.
europepmc +1 more source
ABSTRACT The combination of metasurfaces with chalcogenide phase‐change materials is a highly promising route toward the development of multifunctional and reconfigurable nanophotonic devices. However, their transition into real‐world devices is hindered by several technological challenges. This includes, amongst others, the lack of large area photonic
Carlota de Ruiz de Galarreta +8 more
wiley +1 more source
Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings
Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini +5 more
wiley +1 more source
Advanced terahertz refractive index sensor in all-dielectric metasurface utilizing second order toroidal quasi-BIC modes for biochemical environments. [PDF]
Maleki J, Fathi D.
europepmc +1 more source
Productive biosensing techniques empowered by all-dielectric metasurfaces
Artificially designed, functional nanostructured surfaces, called metasurfaces, are an emerging platform for biosensing. Two major types of metasurface biosensors have been reported: one is based on resonant-wavelength shift and the other is specialized for fluorescence (FL) detection. The all-dielectric metasurfaces that composed of periodic arrays of
openaire +3 more sources
A large‐aperture, high focusing efficiency and polarization‐independent THz single‐layer achromatic metalens is reported via discrete multi‐wavelength achromatic design and global optimization algorithm. The fabricated metalens exhibits a largest diameter of 2.21 cm, excellent achromatic performance, extremely high average focusing efficiency (> 46 ...
Xiaoqiang Jiang +7 more
wiley +1 more source
Metasurfaces and Metadevices for Topological Electromagnetic Waves
Optical topologies refer to diverse topological localized structures made by diverse parameters of light fields, such as vortices, skyrmions, and hopfions. This article navigates a direction of metasurface‐based integrated devices for generation, manipulation and detection of novel topologies of light, which would be a rapidly growing interdisciplinary
Rensheng Xie +3 more
wiley +1 more source

