Results 51 to 60 of about 411,329 (300)
Nonlinear Negative Refraction by Difference Frequency Generation
, 2015 Negative refraction has attracted much interest for its promising capability in imaging applications. Such an effect can be implemented by negative index meta-materials, however, which are usually accompanied by high loss and demanding fabrication ...
Cao, Jianjun +3 more
core +1 more source
Multiple-cladding fibers with reduced bend loss
Journal of the Optical Society of America A, 2007 We demonstrate that a highly bend-resistant fiber can be realized. It is shown theoretically that, by introducing both depressed and elevated rings into the cladding, bending loss can be reduced significantly. A fiber based on this design has been fabricated and characterized as a first step toward achieving this goal.
Tomljenovic-Hanic, Snjezana +4 more
openaire +3 more sources
Advanced Engineering Materials, EarlyView.Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente +3 more
wiley +1 more source
IEEE Photonics Journal, 2021 A ultra-wideband highly-birefringent Bragg layered photonic bandgap fiber (BL-PBGF) with concave-index cladding is proposed and demonstrated, by incorporating PBG effect with Bragg multilayers for the first time to the best of our knowledge. The proposed
Hongyu Tan +8 more
doaj +1 more source
Bending force of LLDPE monofilaments at high temperatures measured in DMA (Dynamic Mechanical Analyzer) [PDF]
, 2018 The bending force of monofilaments used as pile layer in artificial turf football fields is a very important property due to the strong relation with the performance of the entire system being the force that mostly influences the deformation of ...
Guxho, G. +3 more
core +1 more source
Bend loss in all-solid bandgap fibres
Optics Express, 2006 Experimental measurements of all-solid photonic bandgap fibres with an array of high-index rods in a low-index background revealed an unexpected variation of bend loss across different bandgaps. This behaviour was confirmed by calculations of photonic band structure, and explained with reference to the differing field distributions of the modes of the ...
T A, Birks +5 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm +5 more
wiley +1 more source
Applied SciencesLeaky feeders provide seamless and uniform signal coverage in confined spaces like tunnels, mines, and buildings. Their easy scalability and integration with modern systems, like Multiple Input Multiple Output (MIMO), make them ideal for environments ...
Hasan Farahneh +5 more
doaj +1 more source
Efficient Coupling between Dielectric-Loaded Plasmonic and Silicon Photonic Waveguides [PDF]
, 2010 The realization of practical on-chip plasmonic devices will require efficient coupling of light into and out of surface plasmon waveguides over short length scales.
Atwater, Harry A. +4 more
core +1 more source
Improved arrayed-waveguide-grating layout avoiding systematic phase errors [PDF]
, 2011 We present a detailed description of an improved arrayed-waveguide-grating (AWG) layout for both, low and high diffraction orders. The novel layout presents identical bends across the entire array; in this way systematic phase errors arising from ...
Driessen, Alfred +6 more
core +4 more sources