Results 91 to 100 of about 26,548 (312)
Coupling terahertz wave into a plasmonic waveguide by using two ribbon waveguides
Results in Physics, 2020 We proposed the design of coupling terahertz wave into a plasmonic waveguide via using two alumina ribbon waveguides. The dispersion relation of fundamental alumina waveguide mode shows that it has intersections with plasmonic modes, resulting in the ...
Wenwei Shen +4 more
doaj +1 more source
Pulsed laser deposition and characterisation of rare earth doped glass-polymer optical materials [PDF]
, 2012 Tellurite glass is well known for its excellent optical properties in the application of optical fiber and planar waveguide devices, particularly for optical amplifiers. This thesis is focused on the design, fabrication and characterisation of tellurite
Zhao, Zhanxiang
core
Calculation of losses in 2-D photonic crystal membrane waveguides using the 3-D FDTD method [PDF]
, 2004 The three-dimensional finite-difference time-domain method is used to obtain loss per unit length in a two-dimensional photonic crystal membrane waveguide by simulating three different length guides. Results are shown for propagation both above and below
Cryan, MJ +5 more
core +1 more source
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
Clearing a path for light through non-Hermitian media
NanophotonicsThe performance of all active photonic devices today is greatly limited by loss. Here, we show that one can engineer a low loss path in a metal-clad lossy multi-mode waveguide while simultaneously achieving high-performance active photonic devices.
Dave Utsav D. +4 more
doaj +1 more source
Record Performance in Vertically Stacked, Solution‐Processed ZTO Schottky Diodes
Advanced Materials Technologies, EarlyView.Schottky diodes based on solution processed sustainable zinc—tin–oxide thin films present an eco‐friendly and versatile alternative to conventional CMOS based technologies. Beyond state‐of‐the‐art performance for vertically stacked solution‐based oxide diodes was achieved, including rectification ratios exceeding nine orders of magnitude, and intrinsic
Carlos Silva +10 more
wiley +1 more source
IEEE Photonics Journal, 2013 We describe a Si-Ge-silica monolithic integration platform for telecommunications applications. The monolithic integration process features low-temperature silica film deposition by electron-cyclotron-resonance chemical vapor deposition to prevent ...
Tatsurou Hiraki +8 more
doaj +1 more source
Rotated Half-Mode Substrate Integrated Waveguide and other Planar Integrated Structures [PDF]
, 2015 High data rate communication channels are becoming more and more integrated into our increasingly technological society. Substrate Integrated Waveguides (SIW) are one planar solution available to the microwave engineer, offering a low-loss and low ...
Farrall, Andrew J
core
Advanced Materials Technologies, EarlyView.Left: Illustration of the glass & nanostructures system and the NIR emission at 1.5 µm, where the colored spheres represent the Er3+ ions within the doped glass. Right: Representation of the Stark splitting of the 4I13/2 and 4I15/2 manifolds of the Er3+, illustrating how the plasmonic modes facilitate the emission from the broader Stark manifold ...
Gaston Lozano Calderón +5 more
wiley +1 more source
Advanced Optical Materials, EarlyView.ABSTRACT Photonic integrated circuits (PICs) can deliver unparalleled performance for future neuromorphic computing applications. Such neuromorphic PICs require a large number of tunable switches, which are typically realized with current‐controlled heaters, resulting in considerable energy consumption.
Jens Samland +10 more
wiley +1 more source