Results 81 to 90 of about 44,238 (288)

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Optical Field Transmission Analysis of an All-Fiber Signal Combiner With a Dumbbell Shape

IEEE Photonics Journal, 2022
In this paper, the optical field transmission characteristics of an all-fiber signal combiner with a dumbbell shape and its application in laser beam combining are analyzed theoretically. Based on the three-layer waveguide model, the mode characteristics
Xuanfeng Zhou
doaj   +1 more source

Experimental stress-strain analysis of tapered silica optical fibers with nanofiber waist

, 2014
We experimentally determine tensile force-elongation diagrams of tapered optical fibers with a nanofiber waist. The tapered optical fibers are produced from standard silica optical fibers using a heat and pull process. Both, the force-elongation data and
Hoinkes, Thomas, Holleis, Sigrid, Rauschenbeutel, Arno, Schneeweiss, Philipp, Wuttke, Christian   +4 more
core   +1 more source

Complete polarization control for a nanofiber waveguide using directional coupling [PDF]

, 2019
Optical nanofiber waveguides are widely used for near-field delivery and measurement of light. Despite their versatility and efficiency, nanofibers have a critical drawback - their inability to maintain light's polarization state on propagation. Here, we
Chormaic, Síle Nic, Lei, Fuchuan, Tkachenko, Georgiy, Ward, Jonathan M.   +3 more
core   +3 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Numerical Investigation of Raman-Assisted Four-Wave Mixing in Tapered Fiber Raman Fiber Amplifier

Photonics
The generation of unwanted higher-order Raman effects is the main factor restricting the power scaling of Raman fiber amplifiers (RFAs). This phenomenon arises from an interplay of physical processes, including stimulated Raman scattering (SRS), four ...
Shanmin Huang, Yang Zhang, Xiulu Hao, Chenchen Fan, Xiao Chen, Jun Ye, Tianfu Yao, Hanwei Zhang, Liangjin Huang, Jinyong Leng, Jiangming Xu, Zhiyong Pan, Pu Zhou   +12 more
doaj   +1 more source

On-chip optical fiber-to-nanophotonic waveguide adiabatic coupler [PDF]

AIP Advances
We report a simple design of an on-chip optical fiber-to-nanophotonic waveguide adiabatic coupler. An inverse-tapered waveguide can be fabricated on an etched oxide layer to achieve index-crossing with a tapered optical fiber without severe light leakage
Xinchao Zhou, Tzu-Han Chang, Eric Liu, Saivirinchi Prabandhakavi, Chen-Lung Hung   +4 more
doaj   +1 more source

Efficient nitrogen-vacancy centers' fluorescence excitation and collection from micrometer-sized diamond by a tapered optical fiber

, 2018
Efficiently excite nitrogen-vacancy (NV) centers in diamond and collect their fluorescence significantly benefit the fiber-optic-based NV sensors.
Arumugam, Sri Ranjini, Balasubramanian, Gopalakrishnan, Chang, Huan-Cheng, Du, Guanxiang, Duan, Dewen, Kavatamane, Vinaya Kumar, Tzeng, Yan-Kai   +6 more
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source