Results 81 to 90 of about 10,513 (291)

Rigorous sufficient conditions for index-guided mode in microstructured dielectric waveguides

, 2008
We derive a sufficient condition for the existence of index-guided modes in a very general class of dielectric waveguides, including photonic-crystal fibers (arbitrary periodic claddings, such as ``holey fibers''), anisotropic materials, and waveguides ...
Bamberger, Elachi, Fan, Johnson, Karen K. Lee, Kawakami, Kubota, Kuhlmey, Li, Messerly, Russell, Simon, Simpson, Smith, Steven G. Johnson, Yang, Yeh, Yehuda Avniel   +17 more
core   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Remarks of Optical Fibers and Devices for Microfluidic Sensing: Preparation and Processing

Photonic Sensors
With the gradual maturity of the microfluidic technology, the integration of the microfluidic chip technology and optofluidic methods in microstructured optical fibers (MOFs) has gradually formed a highly attractive new research direction. In this paper,
Xiaotong Zhang, Tingting Yuan
doaj   +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

A New Design of Ultra-Flattened Near-zero Dispersion PCF Using Selectively Liquid Infiltration

, 2014
The paper report new results of chromatic dispersion in Photonic Crystal Fibers (PCFs) through appropriate designing of index-guiding triangular-lattice structure devised, with a selective infiltration of only the first air-hole ring with index-matching ...
Chaudhuri, Partha Roy, Maji, Partha Sona
core   +1 more source

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

Advanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari, Gokul Bhaskaran, Krishan Kumar, Yun Suk Huh, Young‐Kyu Han   +4 more
wiley   +1 more source

Improving the bandwidth of microstructured multimode W-type POFs in the visible light range

Frontiers in Physics
The bandwidth of multimode W-type microstructured plastic optical fibers (mPOFs) is analyzed using the time-dependent power flow equation (TD PFE). The results demonstrate that increasing the wavelength enhances the bandwidth in W-type mPOFs, depending ...
Branko Drljača, Ana Simović, Alexandar Djordjevich, Konstantinos Aidinis, Konstantinos Aidinis, Svetislav Savović   +5 more
doaj   +1 more source

Revolver Hollow Core Optical Fibers

Fibers, 2018
Revolver optical fibers (RF) are special type of hollow-core optical fibers with negative curvature of the core-cladding boundary and with cladding that is formed by a one ring layer of capillaries. The physical mechanisms contributing to the waveguiding
Igor A. Bufetov, Alexey F. Kosolapov, Andrey D. Pryamikov, Alexey V. Gladyshev, Anton N. Kolyadin, Alexander A. Krylov, Yury P. Yatsenko, Alexander S. Biriukov   +7 more
doaj   +1 more source

2W/nm Peak-power All-Fiber Supercontinuum Source and its Application to the Characterization of Periodically Poled Nonlinear Crystals

, 2007
We demonstrate a uniform high spectral brightness and peak power density all-fiber supercontinuum source. The source consists of a nanosecond Ytterbium fiber laser and an optimal length PCF producing a continuum with a peak power density of 2 W/nm and ...
B.A. Cumberland, Demircan, Dudley, Dudley, Dunsby, Fei, Genty, Hsiung, J.C. Travers, J.R. Taylor, Jones, Knight, Kudlinski, R.E. Kennedy, Rakich, Ranka, S.V. Popov, Travers, Wadsworth   +18 more
core   +1 more source

Microstructured fiber splicing.

Optics express, 2012
We present experimental results on Microstructured Optical Fiber (MOF) splicing with a simple method relying on conventional electric-arc splicers. The results are presented in terms of fusion losses and tensile strength. An electric-arc splicing system is used to demonstrate its effectiveness in splicing MOFs together as well as splicing MOF with a ...
Bruno, Bourliaguet, Claude, Paré, Frédéric, Emond, André, Croteau, Antoine, Proulx, Réal, Vallée   +5 more
openaire   +1 more source