Results 41 to 50 of about 1,991 (217)

PROCESS METHODS WITH LOW LEVEL OF OPTICAL LOSSES FOR THE MICROSTRUCTURED FIBER LIGHT GUIDES [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2014
The paper deals with results of the technology process development for the microstructured fiber light guides. Light guides with one or two cycles of the openings, processed by two-phase technology were created during carried out research. The use of two
A. G. Korobeynikov, Y. A. Gatchin, K. V. Dukelskiy, E. V. Ter-Nersesyantz   +3 more
doaj  

Hydrostatic Pressure Sensing with High Birefringence Photonic Crystal Fibers

Sensors, 2010
The effect of hydrostatic pressure on the waveguiding properties of high birefringence photonic crystal fibers (HiBi PCF) is evaluated both numerically and experimentally.
Roberth W. A. Llerena, Vinícius V. Silva, Isabel C. S. Carvalho, Arthur M.B. Braga, Cicero Martelli, Sully M. M. Quintero, Fernando C. Fávero, Luiz C. G. Valente   +7 more
doaj   +1 more source

Fabrication Quality Assessment Based on the Coupling of a Dual-Core Microstructured Polymer Optical Fiber

Sensors, 2021
In this paper we report on the theoretical analysis and fabrication of a dual-core microstructured polymer optical fiber (mPOF) and demonstrate how the coupling characteristics of a dual-core mPOF may be a key factor to assess the quality of the ...
Amaia Berganza, Eneko Arrospide, Josu Amorebieta, Joseba Zubia, Gaizka Durana   +4 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Elaboration by additive manufacturing of microstructured optical fibers for infrared sensing application

Optical Materials: X
Additive manufacturing offers new opportunities for designing complex glass preforms that cannot be achieved by conventional methods. In this work, we demonstrate the fabrication of microstructured chalcogenide-glass fibers for mid-infrared sensing using
Robin Chenevière, Simon Coudray, Catherine Boussard-Pledel, Francois Cheviré, Ronan Lebullenger, Antoine Gautier, Thierry Jouan, Bruno Bureau, Frederic Charpentier, Yann Guimond, Leo Szymczyk, Hugues Tariel, Khalid El-Kalti, Johann Troles   +13 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Multidimensional microstructured photonic device based on all-solid waveguide array fiber and magnetic fluid

Nanophotonics, 2017
An all-solid waveguide array fiber (WAF) is one kind of special microstructured optical fiber in which the higher-index rods are periodically distributed in a low-index silica host to form the transverse two-dimensional photonic crystal.
Miao Yinping, Ma Xixi, He Yong, Zhang Hongmin, Yang Xiaoping, Yao Jianquan   +5 more
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source