Results 101 to 110 of about 138,061 (301)

Minimization of Temperature Effects of High-Birefringent Elliptical Fibers for Polarmetric Optical-Fiber Sensors [PDF]

, 1994
The temperature dependence of polarization-maintaining fibers is a problem in polarimetric optical-fiber sensors. We report a novel method for making a temperature-insensitive, polarization-maintaining fiber, which may be used for the sensing part in a ...
Lit, John W.Y., Zhang, Feng
core   +1 more source

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Microscale insight into the proton concentration during electrolytic reaction via an optical microfiber: potential for microcurrent monitoring by a dielectric probe

Light: Science & Applications
Local microcurrent monitoring is of great significance for biological and battery systems, yet it poses a formidable challenge. The current measurement techniques rely on electromagnetic materials which inevitably introduce interference to the system ...
Yunyun Huang, Jiaxuan Liang, Haotian Wu, Pengwei Chen, Aoxiang Xiao, Bai-Ou Guan   +5 more
doaj   +1 more source

All-Optical Tuning of Light in WSe2-Coated Microfiber

Nanoscale Research Letters, 2019
The tungsten diselenide (WSe2) has attracted considerable interest owing to their versatile applications, such as p-n junctions, transistors, fiber lasers, spintronics, and conversion of solar energy into electricity. We demonstrate all-optical tuning of
Zhiran Shen, He Zhu, Jiyu Hong, Xun Gui, Heyuan Guan, Jiangli Dong, Hanguang Li, Xiaoli Wang, Wentao Qiu, Enze Zhang, Yunyao Ou, Dongqin Lu, Luqi Luo, Huihui Lu, Wenguo Zhu, Jianhui Yu, Yunhan Luo, Zhe Chen, Gangding Peng   +18 more
doaj   +1 more source

Spectral Tailoring of Random Fiber Laser Based on the Multimode Interference Filter

IEEE Access, 2018
In this paper, we propose and experimentally demonstrate a novel scheme to tailor the spectrum of random fiber laser (RFL) based on the multimode interference effect.
Han Wu, Qingyang Meng, Jiaqi Li, Bing Han, Zinan Wang, Yunjiang Rao   +5 more
doaj   +1 more source

Optical fiber interferometer for the study of ultrasonic waves in composite materials [PDF]

The possibility of acoustic emission detection in composites using embedded optical fibers as sensing elements was investigated. Optical fiber interferometry, fiber acoustic sensitivity, fiber interferometer calibration, and acoustic emission detection ...
Claus, R. O., Garg, A. O., Rogers, R. T., Turner, T. M., Wade, J. C., Zewekh, P. S.   +5 more
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel, Lara Kuhr, Khemais Barienti, Sebastian Herbst, Florian Nürnberger, Hans Jürgen Maier, Marc C. Wurz   +6 more
wiley   +1 more source

Highly Sensitive Fiber Taper Interferometric Hydrogen Sensors

IEEE Photonics Journal, 2016
We report on the implementation of fiber taper interferometric hydrogen sensors with high sensitivity and good reproducibility. The tapering process is carried out with a commercial fusion splicer by precisely controlling the pulling and feeding ...
Zhipeng Yu, Long Jin, Lipeng Sun, Jie Li, Yang Ran, Bai-Ou Guan   +5 more
doaj   +1 more source

Surface nanoscale axial photonics

, 2011
Dense photonic integration promises to revolutionize optical computing and communications. However, efforts towards this goal face unacceptable attenuation of light caused by surface roughness in microscopic devices.
Fini, J. M., Sumetsky, M.
core   +1 more source