Results 71 to 80 of about 3,675 (307)

Dipole radiation model for surface roughness scattering in hollow-core fibers [PDF]

, 2012
We propose a physical model based on dipole radiation to estimate surface roughness scattering loss in microstructured and hollow-core photonic bandgap fibers.
David J. Richardson, Richardson, D.J., Eric Numkam, Poletti, F., Numkam Fokoua, Eric, Francesco Poletti   +5 more
core   +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

Characteristics of Resonantly-Guided Modes in Microstructured Optical Fibers

Photonics, 2014
Modal characteristics of resonantly-guided modes (RGMs) in microstructured fibers were investigated through numerical simulation. The modes of interest are supported in a class of fibers consisting of a circularly arranged periodic array of high index ...
Yasuo Ohtera, Haruka Hirose, Hirohito Yamada   +2 more
doaj   +1 more source

PCF Based Sensor with High Sensitivity, High Birefringence and Low Confinement Losses for Liquid Analyte Sensing Applications [PDF]

, 2015
In this paper, we report a design of high sensitivity Photonic Crystal Fiber (PCF) sensor with high birefringence and low confinement losses for liquid analyte sensing applications.
Huseyin Ademgil, Haxha, Shyqyri, Ademgil, Huseyin, Shyqyri Haxha   +3 more
core   +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

Dispersion management in highly nonlinear, carbon disulfide filled holey fibers [PDF]

, 2008
We study various fiber designs which incorporate a highly nonlinear liquid, carbon disulfide, with the aim of designing a structure with the highest possible nonlinearity and at the same time a low and flattened dispersion at telecom wavelengths, as ...
Camerlingo, A., Petropoulos, P., Richardson, D.J., Poletti, F.   +3 more
core   +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

Driving down the Detection Limit in Microstructured Fiber‑Based Chemical Dip Sensors

Sensors, 2011
We present improvements to fluorescence sensing in soft-glass microstructured optical fibers that result in significantly improved sensitivity relative to previously published results.
Tanya M. Monro, Richard T. White, Erik P. Schartner, Stephen C. Warren-Smith, Heike Ebendorff-Heidepriem   +4 more
doaj   +1 more source