Results 51 to 60 of about 180,033 (332)

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

open access: yesAdvanced 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   +2 more
doaj   +1 more source

FEM investigation of leaky modes in hollow core photonic crystal fibers [PDF]

open access: yes, 2007
Hollow-core holey fibers are promising candidates for low-loss guidance of light in various applications, e.g., for the use in laser guide star adaptive optics systems in optical astronomy.
Burger, S.   +4 more
core   +2 more sources

Simple method for characterization of photonic crystal fibers

open access: yesJournal 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   +2 more
doaj   +1 more source

Vortex solitons in photonic crystal fibers

open access: yes, 2003
We demonstrate the existence of vortex soliton solutions in photonic crystal fibers. We analyze the role played by the photonic crystal fiber defect in the generation of optical vortices.
Akhmediev   +18 more
core   +1 more source

Hybrid photonic-crystal fiber [PDF]

open access: yesReviews of Modern Physics, 2017
This article offers an extensive survey of results obtained using hybrid photonic crystal fibers (PCFs) which constitute one of the most active research fields in contemporary fiber optics. The ability to integrate novel and functional materials in solid- and hollow-core PCFs through various post-processing methods has enabled new directions towards ...
Markos, Christos   +4 more
openaire   +5 more sources

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

open access: yesAdvanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath   +6 more
wiley   +1 more source

Testing of highly doped and photonic crystal optical fibers

open access: yesJournal 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

Finite Element simulation of radiation losses in photonic crystal fibers

open access: yes, 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   +4 more
core   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

open access: yesAdvanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Photonic Crystal Fibers for Sensing Applications

open access: yes, 2018
This article reviews the recent progress in optical sensors using photonic crystal fiber (PCF) technology, which is newly adopted beyond conventional optical fibers (OFs) due to their unique geometric structures. PCFs have some exceptional properties. It
Boni Amin Sm   +5 more
semanticscholar   +1 more source

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