Results 31 to 40 of about 44,045 (255)

Laser-Like Performance of Side-Pumped Dye-Doped Polymer Optical Fibers

IEEE Photonics Journal, 2015
Mirrorless graded-index polymer optical fibers doped with the organic dye rhodamine 6G result in very compact broadband fiber lasers in the visible region when pumped from the side.
J. Arrue, M. A. Illarramendi, I. Ayesta, F. Jimenez, J. Zubia, A. Tagaya, Y. Koike   +6 more
doaj   +1 more source

Optical Strain Measurement with Step-Index Polymer Optical Fiber Based on the Phase Measurement of an Intensity-Modulated Signal

Sensors, 2018
Polymer optical fibers (POFs) have been proposed for optical strain sensors due to their large elastic strain range compared to glass optical fibers (GOFs).
Thomas Becker, Olaf Ziemann, Rainer Engelbrecht, Bernhard Schmauss   +3 more
doaj   +1 more source

Advances on Polymer Optical Fiber Gratings Using a KrF Pulsed Laser System Operating at 248 nm

Fibers, 2018
This paper presents the achievements and progress made on the polymer optical fiber (POF) gratings inscription in different types of Fiber Bragg Gratings (FBGs) and long period gratings (LPGs). Since the first demonstration of POFBGs in 1999, significant
Carlos A. F. Marques, Arnaldo G. Leal-Junior, Rui Min, Maria Domingues, Cátia Leitão, Paulo Antunes, Beatriz Ortega, Paulo André   +7 more
doaj   +1 more source

Polymer-Based Optical Guided-Wave Biomedical Sensing: From Principles to Applications

Photonics
Polymer-based optical sensors represent a transformative advancement in biomedical diagnostics and monitoring due to their unique properties of flexibility, biocompatibility, and selective responsiveness.
Malhar A. Nagar, Davide Janner
doaj   +1 more source

Elastomer-Embedded Multiplexed Optical Fiber Sensor System for Multiplane Shape Reconstruction

Sensors, 2023
This paper presents the development and application of a multiplexed intensity variation-based sensor system for multiplane shape reconstruction. The sensor is based on a polymer optical fiber (POF) with sequential lateral sections coupled with a ...
Arnaldo Leal-Junior, Leandro Macedo, Leticia Avellar, Anselmo Frizera   +3 more
doaj   +1 more source

Magnetoresponsive Optical Fiber with Fuse‐Effect‐Induced Fluorinated Graphene Oxide Core

Advanced Photonics Research, 2022
Optical fibers have been used massively in communications, specifically silica fibers for long‐distance communications and polymer optical fibers (POFs) for household use.
Tiago Paixão, João H. Belo, Alexandre F. Carvalho, Vitor S. Amaral, João P. Araújo, Heeyoung Lee, Kentaro Nakamura, Yosuke Mizuno, Paulo André, Paulo Antunes   +9 more
doaj   +1 more source

Monitoring of Torque Induced Strain in Composite Shafts with Embedded and Surface-Mounted Optical Fiber Bragg Gratings

Sensors, 2021
In this study, silica glass, optical fiber Bragg gratings (FBGs) are used for torque-induced strain monitoring in carbon fiber reinforced polymer (CFRP) hollow shafts toward the development of a methodology for structural load monitoring.
Maria Konstantaki, Georgios Violakis, Georgios A. Pappas, Thomas Geernaert, Nikos Korakas, Nikos Tiriakidis, Thomai Tiriakidi, Kosmas Tiriakidis, Hugo Thienpont, Francis Berghmans, John Botsis, Stavros Pissadakis   +11 more
doaj   +1 more source

All-inorganic lattice-contracted fabric image sensors for extreme-temperature radiography

Nature Communications
Conventional X‑ray sensing fails in extreme temperatures due to a fundamental trilemma: no material offers strong absorption, flexibility, and thermal stability simultaneously.
Li Xu, Peng Ran, Wenqian Zhou, Jingshu Wang, Jianyong Yu, Guodong Li, Yang Michael Yang, Yang Si   +7 more
doaj   +1 more source

The influence of polysilane chemical structure on optical properties, rubbed film morphology and LC alignment

eXPRESS Polymer Letters, 2015
Polysilane films were prepared by the drop casting method and their optical and morphological properties have been analyzed in order to investigate their suitability as alignment layers for nematic molecules.
M. Soroceanu, A. I. Barzic, I. Stoica, L. Sacarescu, V. Harabagiu   +4 more
doaj   +1 more source

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

FEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain, Elise Buret, Le Hoang Thanh Nguyen, Marion Cocheteux, Nicolas Touya, Mélanie Dhayer, Romain Dubois, Frank Lafont, Sebastien Janel, Patrice Maboudou, Steve Lancel, Philippe Marchetti   +11 more
wiley   +1 more source