Results 61 to 70 of about 10,365 (247)

Applications of microstructured fibers : supercontinua and novel components [PDF]

, 2005
Microstructured fibers are a special class of pure-silica optical fibers. They consist of a silica core, surrounded by a periodic array of air-holes running along the entire length of the fiber.
Lehtonen, Mikko
core  

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

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, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

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

Fiber-optical analogue of the event horizon

, 2008
The physics at the event horizon resembles the behavior of waves in moving media. Horizons are formed where the local speed of the medium exceeds the wave velocity.
Brabec, C. Kuklewicz, F. Konig, Garay, Giovanazzi, Leonhardt, Leonhardt, Reeves, Russell, S. Hill, S. Robertson, Sch  tzhold, T. G. Philbin, U. Leonhardt   +13 more
core   +1 more source

Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel, Lara Kuhr, Khemais Barienti, Sebastian Herbst, Florian Nürnberger, Hans Jürgen Maier, Marc C. Wurz   +6 more
wiley   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Generation of infrared photon pairs by spontaneous four-wave mixing in a CS2-filled microstructured optical fiber

Scientific Reports
We experimentally demonstrate frequency non-degenerate photon-pair generation via spontaneous four-wave mixing from a novel CS2-filled microstructured optical fiber.
Mina Afsharnia, Saher Junaid, Sina Saravi, Mario Chemnitz, Katrin Wondraczek, Thomas Pertsch, Markus A. Schmidt, Frank Setzpfandt   +7 more
doaj   +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