Results 101 to 110 of about 26,887 (312)
Double Helical Plasmonic Antennas
Advanced Functional Materials, EarlyView.Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin +7 more
wiley +1 more source
Functionalised graphene sheets as effective high dielectric constant fillers
Nanoscale Research Letters, 2011 A new functionalised graphene sheet (FGS) filled poly(dimethyl)siloxane insulator nanocomposite has been developed with high dielectric constant, making it well suited for applications in flexible electronics.
Romasanta Laura +3 more
doaj
Advanced Functional Materials, EarlyView.For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin +7 more
wiley +1 more source
, 2008 We compare the properties of subwavelength imaging in the visible wavelength range for metal-dielectric multilayers operating in the canalization and the resonant tunnelling regimes.
Born M +5 more
core +1 more source
Reconfigurable dielectric resonator antenna with multiple polarisation states
IET Microwaves, Antennas & Propagation, 2018 The realisation of an electronically tuned polarisation reconfigurable dielectric resonator antenna with multiple switchable states is described in this study. The antenna is fed by a microstrip line through a cross‐slot aperture placed in the ground plane to achieve circular polarisation.
Sayantan Dhar +4 more
openaire +1 more source
Advanced Functional Materials, EarlyView.The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich +6 more
wiley +1 more source
Effect of electric field on the ultrasonic wave propagation velocity in oils
Archives of Acoustics, 2014 A dielectric liquid in an external electric field exhibits variations in its physical properties as a result of deformational polarisation and orientational polarisation. Moreover, it undergoes volume deformation due to electrostriction.
A. SKUMIEL, M. ŁABOWSKI
doaj
Optomechanical deformation and strain in elastic dielectrics
, 2012 Light forces induced by scattering and absorption in elastic dielectrics lead to local density modulations and deformations. These perturbations in turn modify light propagation in the medium and generate an intricate nonlinear response. We generalise an
Born M +9 more
core +1 more source
Dual‐band dielectric resonator antenna with multi‐frequency circular polarisation [PDF]
, 2020 Rakesh Ranjan Kumar +4 more
openalex +1 more source
Advanced Functional Materials, EarlyView.Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein +4 more
wiley +1 more source