Results 11 to 20 of about 3,254,474 (292)

Treatment of Mode Coupling in Step-Index Multimode Microstructured Polymer Optical Fibers by the Langevin Equation. [PDF]

open access: yesPolymers (Basel), 2022
By solving the Langevin equation, mode coupling in a multimode step-index microstructured polymer optical fibers (SI mPOF) with a solid core was investigated. The numerical integration of the Langevin equation was based on the computer-simulated Langevin
Savović S   +4 more
europepmc   +2 more sources

Pulsed laser deposition and characterisation of rare earth doped glass-polymer optical materials [PDF]

open access: yes, 2012
Tellurite glass is well known for its excellent optical properties in the application of optical fiber and planar waveguide devices, particularly for optical amplifiers. This thesis is focused on the design, fabrication and characterisation of tellurite
Zhao, Zhanxiang
core   +6 more sources

BER OPTIC SENSOR MODIFIED BY GRAFTING OF THE MOLECULARLY IMPRINTED POLYMER FOR THE DETECTION OF AMMONIUM IN AQUEOUS MEDIA [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
Subject of Research.The paper deals with novel chemical sensors based on the polymeric optical fibers modified by grafting of the molecularly imprinted polymer for the detection of ammonium in aqueous solutions.
N. Lopes,   +6 more
doaj   +1 more source

Design of Polarization-Maintaining FBGs Using Polyimide Films to Improve Strain-Temperature Sensing in CFRP Laminates

open access: yesIEEE Photonics Journal, 2021
Uniform Fiber Bragg Grating sensors based on Polarization-Maintaining fibers are designed for simultaneous longitudinal strain and temperature measurement of Carbon Fiber Reinforced Polymer laminates.
Andrea Annunziato   +4 more
doaj   +1 more source

Optical Bend Sensor Based on Eccentrically Micro-Structured Multimode Polymer Optical Fibers

open access: yesIEEE Photonics Journal, 2021
We report on a novel bend sensor with high flexibility and elasticity based on Bragg grating structures in polymer optical fibers to detect bending for the measurement of movement.
Lennart Leffers   +4 more
doaj   +1 more source

Measurements of stress-optic coefficient in polymer optical fibers [PDF]

open access: yesOptics Letters, 2010
We have systematically measured the differential stress-optic coefficient, DeltaC, in a number of poly(methyl methacrylate) (PMMA) fibers drawn with different stress, ranging from 2 up to 27 MPa. DeltaC was determined in transverse illumination by measuring the dependence of birefringence on additional axial stress applied to the fiber.
Szczurowski M.K.   +5 more
openaire   +2 more sources

Luminescent solar concentrators based on melt-spun polymer optical fibers

open access: yesMaterials & Design, 2020
Luminescent solar concentrators (LSCs) collect incoming sunlight and direct it to a smaller-area photovoltaic cell. In the presented work, form factor and illumination angle-dependent performance of LSCs consisting of bi-component melt-spun fibers is ...
Konrad Jakubowski   +5 more
doaj   +1 more source

Tailoring optical fibers for cell transfection [PDF]

open access: yes, 2012
Optical transfection is a promising technique for the delivery of foreign genetic material into cells by transiently changing the permeability of the cell membrane.
Ma, Nan
core   +2 more sources

Annular Cavity Design for Photoluminescent Polymer Optical Fiber Sensors

open access: yesSensors, 2020
We present optimization results on the design of a polymer optical fiber single point sensor suitable for photoluminescence-based sensing. The single point sensing design consists of one or two annular cavities, separated by a small distance, milled into
Rune Inglev, Jakob Janting, Ole Bang
doaj   +1 more source

Polymer Fibers Covered by Soft Multilayered Films for Sensing Applications in Composite Materials

open access: yesSensors, 2019
This paper presents the possibility of applying a soft polymer coating by means of a layer-by-layer (LbL) technique to highly birefringent polymer optical fibers designed for laminating in composite materials.
Dorian Nikoniuk   +7 more
doaj   +1 more source

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