Results 31 to 40 of about 82,349 (302)
Dielectric Sensors Based on Electromagnetic Energy Tunneling
Sensors, 2015 We show that metallic wires embedded in narrow waveguide bends and channels demonstrate resonance behavior at specific frequencies. The electromagnetic energy at these resonances tunnels through the narrow waveguide channels with almost no propagation ...
Omar Siddiqui +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami +4 more
wiley +1 more source
Photonic crystal waveguides in chalcogenide glasses [PDF]
, 2011 The growing speed and bandwidth requirements of telecommunication systems demand all-optical on-chip solutions. Microphotonic devices can deliver low power nonlinear signal processing solutions. This thesis looks at the slow light photonic crystals in
Spurny, Marcel
core +2 more sources
Supercontinuum in integrated photonics: generation, applications, challenges, and perspectives
Nanophotonics, 2023 Frequency conversion in nonlinear materials is an extremely useful solution to the generation of new optical frequencies. Often, it is the only viable solution to realize light sources highly relevant for applications in science and industry.
Brès Camille-Sophie +5 more
doaj +1 more source
Advanced Functional Materials, EarlyView.We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim +6 more
wiley +1 more source
IEEE Photonics Journal, 2012 The proposed silicon-on-nitride (SON) waveguide exhibits an ultrabroadband (4200 nm), low chromatic dispersion in the mid-infrared (MIR) wavelength region from 2430 to 6630 nm. It has two zero-dispersion wavelengths within the span.
Yang Yue +4 more
doaj +1 more source
Multilayer Universal Transitions Between Substrate Integrated Waveguides and Rectangular Waveguides
, 2022 Even though a large number of transitions between metal waveguides and planar transmission lines/waveguides has been proposed thus far, due to different shortcomings, none of them has gained widespread acceptance comparable to the ubiquitous right-angle ...
Budimir, D. +3 more
core +1 more source
Advanced Functional Materials, EarlyView.Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner +14 more
wiley +1 more source
Giant Birefringence of Periodic Dielectric Waveguides
IEEE Photonics Journal, 2011 The giant (Δn >; 1.5) and broadband achromatic birefringence is realized by periodic dielectric waveguides (PDWs), which benefit from low loss transmission, compact size, and simple structure.
Wenfu Zhang +3 more
doaj +1 more source
Waveguiding and photoluminescence in Er3+-doped Ta2O5 planar waveguides [PDF]
, 2009 The optimization of erbium-doped Ta2O5 thin film waveguides deposited by magnetron sputtering onto thermally oxidized silicon wafer is described. Optical constants of the film were determined by ellipsometry.
OTON NIETO, CLAUDIO JOSE +9 more
core +1 more source