Results 61 to 70 of about 8,586 (282)

Microstructured Fibers Based on Tellurite Glass for Nonlinear Conversion of Mid-IR Ultrashort Optical Pulses

Photonics, 2020
Compact fiber-based sources generating optical pulses with a broadband spectrum in the mid-IR range are in demand for basic science and many applications.
Elena A. Anashkina, Vitaly V. Dorofeev, Sergey A. Skobelev, Alexey A. Balakin, Sergei E. Motorin, Alexey F. Kosolapov, Alexey V. Andrianov   +6 more
doaj   +1 more source

Data Transparent and Polarization Insensitive All-Optical Switch based on Fibers with Enhanced Nonlinearity [PDF]

, 2014
We have developed a data transparent optical packet switch prototype employing wavelength conversion based on four-wave mixing. The switch is composed of an electro-optical control unit and an all-optical switching segment.
Komanec, M., Martan, T., Sistek, J., Skoda, P.   +3 more
core   +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

Microstructured optical fiber interferometric breathing sensor

Journal of Biomedical Optics, 2012
In this paper a simple photonic crystal fiber (PCF) interferometric breathing sensor is introduced. The interferometer consists of a section of PCF fusion spliced at the distal end of a standard telecommunications optical fiber. Two collapsed regions in the PCF caused by the splicing process allow the excitation and recombination of a core and a ...
Fernando C, Favero, Joel, Villatoro, Valerio, Pruneri   +2 more
openaire   +2 more sources

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

MATERIAIS VÍTREOS E LUZ: PARTE 2

Química Nova, 2016
In this second part it will be discussed some photonic applications of glassy and glass ceramic thin films which can be used as planar waveguides. Some photonic applications require certain specifications of glass, which can be quantified by studying the
Marcelo Nalin, Sidney J. L. Ribeiro, Danilo Manzani, Rogéria Rocha Gonçalves, Gael Poirier, Fabia Castro Cassanges, Christiano J. S. de Matos, Cleber R. Mendonça, Leonardo de Boni, Lino Misoguti, Oscar Malta, Yannick Ledemi, Sandra Messaddeq, Younes Messaddeq   +13 more
doaj   +1 more source

Dispersion-shifted all-solid high index-contrast microstructured optical fiber for nonlinear applications at 1.55µm

, 2009
We report the fabrication of an all-solid highly nonlinear microstructured optical fiber. The structured preform was made by glass extrusion using two types of commercial lead silicate glasses that provide high index-contrast.
Camerlingo, Angela, Feng, Xian, Horak, Peter, Loh, Wei H., Parmigiani, Francesca, Petropoulos, Periklis, Poletti, Francesco, Richardson, David J.   +7 more
core   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Finite element analysis of photonic crystal fibers [PDF]

, 2005
A finite-element-based vectorial optical mode solver, furnished with Bayliss-Gunzburger-Turkel-like transparent boundary conditions, is used to rigorously analyze photonic crystal fibers (PCFs).
Groesen, E. van, Hoekstra, H.J.W.M., Uranus, H.P.   +2 more
core   +2 more sources