Results 121 to 130 of about 273,805 (290)
Advanced Materials Technologies, EarlyView.Cellulose fibers functionalized using cationic poly(Dimethyldiallylammonium chloride) (polyDADMAC) and laccase‐mediated ferulic acid system are processed into foams using different surfactants (Anionic, cationic, and non‐ionic). Fiber–surfactant interactions influence foam stabilization and porous structure formation during convective drying, producing
Abirami Senthil +4 more
wiley +1 more source
Miniaturised ultra‐wideband circular polarised koch fractal crossed dipole array
IET Microwaves, Antennas & PropagationUltra‐wideband (UWB) systems utilise a broad frequency spectrum to achieve high data transmission rates and enhanced precision, creating a demand for specialised UWB antennas.
Won Min Choi +5 more
doaj +1 more source
Advanced Optical Materials, EarlyView.Here we use a template‐assisted self‐assembly approach of metal colloids onto metal films to produce hybrid plasmonic metasurfaces that integrate nanoparticle‐on‐mirror cavities with periodic metal colloid arrays. The resulting coupling between gap plasmons and grating‐coupled surface plasmon polaritons enables programmable hybrid modes with tailored ...
Afroditi Koutsogianni +6 more
wiley +1 more source
Geometry‐Driven Whispering‐Gallery Modes in Self‐Assembled Phosphorescent Organic Microtubes
Advanced Optical Materials, EarlyView.Micelles encapsulating tris(2‐phenylpyridine)iridium(III) self‐assemble into a hollow hexagonal microtube stabilized by a surface passivation layer. The hexagonal cross‐section confines circulating light along its facets, sustaining sharp whispering‐gallery resonances that guide photoluminescence emission under laser excitation.
Do Wan Kim +10 more
wiley +1 more source
Wirelessly Powered Light and Temperature Sensors Facilitated by Electrically Small Omnidirectional and Huygens Dipole Antennas. [PDF]
Sensors (Basel), 2019 Lin W, Ziolkowski RW.
europepmc +1 more source
Photoluminescent Color Centers on a Mainstream Silicon Photonic Foundry Platform
Advanced Optical Materials, EarlyView.Silicon photonic chips route and process light efficiently but are inherently inefficient at generating it. Here, bright light‐emitting defects, W‐centers, are written into the silicon layer of finished chips from a mainstream commercial foundry: high‐energy ions are implanted straight through the protective oxide and activated by a 250∘C$^\circ{\rm C}$
Prosper Dellah Allo +7 more
wiley +1 more source
Electromagnetic forces produced by dipole antennas
, 2013 A numerical investigation of the electromagnetic forces produced by dipole antennas is presented. The analysis reveals that, aside from the known gradient and radiation pressure forces, dipole antennas produce an attractive near-field force originated as
Liberal, I +3 more
core
Approaching ultimate intrinsic signal-to-noise ratio with loop and dipole antennas. [PDF]
Magn Reson Med, 2018 Lattanzi R +5 more
europepmc +1 more source
Analysis algorithm of the thin electric vibrator
Физика волновых процессов и радиотехнические системы, 2014 Compiled a simple algorithm for calculating the dipole antennas. Includes current detection on the vibrator and use pattern. There is an example.
D.A. Kupriyanov
doaj