Results 61 to 70 of about 15,288 (305)

Traveling wave with beta derivative spatial-temporal evolution for describing the nonlinear directional couplers with metamaterials via two distinct methods

Alexandria Engineering Journal, 2021
This work is reported the analytical solutions for describing the nonlinear directional couplers with metamaterials by including spatial–temporal fractional beta derivative evolution.
M.F. Uddin, M.G. Hafez, Z. Hammouch, H. Rezazadeh, D. Baleanu   +4 more
doaj   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

4-by-4 Integrated Waveguide Coupler Based on Bi-Directional Propagation in Two Single-Mode Waveguides

IEEE Photonics Journal, 2021
We propose and investigate theoretically the use of bi-directional propagation of light in silica integrated coupled waveguide structures for linear optical processing of fiber-coupled photons.
Mathias J. Weisen, James C. Gates, Corin B. E. Gawith, Peter G. R. Smith, Peter Horak   +4 more
doaj   +1 more source

Near-infrared Hong-Ou-Mandel interference on a silicon quantum photonic circuit [PDF]

, 2012
Near-infrared Hong-Ou-Mandel quantum interference is observed in silicon nanophotonic directional couplers with raw visibilities on-chip at 90.5%. Spectrally-bright 1557-nm two-photon states are generated in a periodically-poled KTiOPO4 waveguide chip ...
Englund, Dirk R., Kocaman, Serdar, Kwong, Dim-Lee, Liang, Junlin, Lo, Guo-Qiang, Wong, Chee Wei, Wong, Franco N. C., Xie, Zhenda, Xu, Xinan, Yu, Mingbin, Zheng, Jiangjun, Zhong, Tian   +11 more
core   +2 more sources

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Asymmetric Wavelength-Selective Directional Couplers as Fractional-Order Optical Differentiators

IEEE Access, 2019
In this paper, the asymmetric wavelength-selective directional coupler (DC) is designed as a fractional-order optical differentiator. It is shown that the order of the optical differentiator is determined by the coupling coefficient and the propagation ...
Ting-Ting Yan, Wen-Hua Ren, You-Chao Jiang   +2 more
doaj   +1 more source

Mountain-Shaped Coupler for Ultra Wideband Applications [PDF]

, 2013
This paper demonstrates a novel mountain-shaped design for a compact 3-dB coupler operating at ultra-wideband (UWB) frequencies from 3.1GHz to 10.6 GHz. The proposed design was accomplished using multilayer technology in which the structure is formed by ...
Ausordin, S. F., Dewan, R., Hall, P. S., Rahim, S. K. A., Rahman, T. A., Seman, N., Zaidel, D. N. A.   +6 more
core   +1 more source

Integrated photonic quantum gates for polarization qubits [PDF]

, 2011
Integrated photonic circuits have a strong potential to perform quantum information processing. Indeed, the ability to manipulate quantum states of light by integrated devices may open new perspectives both for fundamental tests of quantum mechanics and ...
A Chiuri, A Laing, A Peruzzo, A Politi, A Politi, A Politi, A Rossi, A Yariv, AS Clark, BJ Smith, CK Hong, D Homoelle, E Knill, E Nagali, E Nagali, G Della Valle, GD Marshall, HF Hofmann, I Bongioanni, I Kiyat, IL Chuang, JCF Matthews, JL O'Brien, JL O'Brien, JL O'Brien, JT Barreiro, KM Davis, L Sansoni, N Kiesel, NK Langford, P Kok, P Walther, PG Kwiat, R Okamoto, R Osellame, R Osellame, R Ursin, RR Gattass, SM Eaton, TC Ralph, TD Ladd, W-B Gao   +41 more
core   +2 more sources

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source