Results 51 to 60 of about 185,430 (329)

Ultra-large bandwidth hollow-core guiding in all-silica Bragg fibers with nano-supports [PDF]

, 2004
We demonstrate a new class of hollow-core Bragg fibers that are composed of concentric cylindrical silica rings separated by nanoscale support bridges. We theoretically predict and experimentally observe hollow-core confinement over an octave frequency ...
Bjarklev, A., Broeng, J., Deyerl, H. -J., Hansen, T. P., Huang, Y., Jakobsen, C., Jensen, J. B., Lee, R. K., Mortensen, N. A., Simonsen, H., Sorensen, T., Terrel, M., Vienne, G., Xu, Y., Yariv, A.   +14 more
core   +3 more sources

All-normal dispersion supercontinuum generation in photonic crystal fibers with large hollow cores infiltrated with toluene

Optical Materials Express, 2018
An all-normal dispersion supercontinuum generation in the range of 950 ÷ 1100 nm in photonic crystal fiber with core infiltrated with toluene is reported.
V. Hoang, R. Kasztelanic, A. Anuszkiewicz, G. Stępniewski, A. Filipkowski, S. Ertman, D. Pysz, T. Wolinski, K. D. Xuan, M. Klimczak, R. Buczyński   +10 more
semanticscholar   +1 more source

Advances on Photonic Crystal Fiber Sensors and Applications

Sensors, 2019
In this review paper some recent advances on optical sensors based on photonic crystal fibres are reported. The different strategies successfully applied in order to obtain feasible and reliable monitoring systems in several application fields, including
Vincenza Portosi, Dario Laneve, Mario Christian Falconi, Francesco Prudenzano   +3 more
doaj   +1 more source

Modular Assembly of Mechanoresponsive Color‐Changing Materials from Hydrogel‐Based Photonic Crystal Microspheres

Advanced Photonics Research, 2022
Mechanoresponsive, soft, photonic materials with tunable structural coloration represent a class of materials that have potential benefits for a wide range of applications.
Golnaz Isapour, Benjamin Harvey Miller, Mathias Kolle   +2 more
doaj   +1 more source

Stabilized large mode area in tapered photonic crystal fiber for stable coupling [PDF]

, 2012
A rigorous modal solution approach based on the numerically efficient finite element method (FEM) has been used to design a tapered photonic crystal fiber with a large mode area that could be efficiently coupled to an optical fiber.
Abana, H., Agrawal, A., Grattan, K. T. V., Kejalakshmy, N., Rahman, B. M., Uthman, M.   +5 more
core   +1 more source

Simple method for characterization of photonic crystal fibers

Journal of Telecommunications and Information Technology, 2023
We report on our experimental characterization of index-guiding photonic crystal fibers (PCF) from their far field intensity distribution. The algorithm presented below makes it possible to determine the geometrical parameters of the PCF (core diameter,
Mieczysław Szustakowski, Norbert Pałka, Waldemar Grabiec   +2 more
doaj   +1 more source

Finite Element simulation of radiation losses in photonic crystal fibers

, 2007
In our work we focus on the accurate computation of light propagation in finite size photonic crystal structures with the finite element method (FEM).
Burger, Sven, Klose, Roland, Pomplun, Jan, Schmidt, Frank, Zschiedrich, Lin   +4 more
core   +1 more source

Guiding mechanisms in dielectric-core photonic-crystal optical waveguides [PDF]

, 2001
We show that the main guiding mechanisms in dielectric-core photonic crystal optical waveguides are total internal reflection and distributed Bragg reflection.
Adibi, Ali, Lee, Reginald K., Scherer, Axel, Xu, Yong, Yariv, Amnon   +4 more
core   +1 more source

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

Testing of highly doped and photonic crystal optical fibers

Journal of Telecommunications and Information Technology, 2023
The paper presents optical measurements – spectral loss, OTDR and PMD, temperature cycling and mechanical tests – bending, twist and crush, performed on Yb-doped single mode fibers and small-core photonic crystal fibers (PCF).
Krzysztof Borzycki
doaj   +1 more source