Results 81 to 90 of about 27,564 (284)

Spatial beam self-cleaning and supercontinuum generation with Yb-doped multimode graded-index fiber taper based on accelerating self-imaging and dissipative landscape [PDF]

, 2019
We experimentally demonstrate spatial beam self-cleaning and supercontinuum generation in a tapered Ytterbium-doped multimode optical fiber with parabolic core refractive index profile when 1064 nm pulsed beams propagate from wider (122 µm) into smaller (
Couderc, V., Egorova, O. N., Fabert, M., Krupa, K., Leproux, P., Levchenko, A. E., Lipatov, D. S., Mansuryan, T., Millot, G., Modotto, D., Niang, A., Semjonov, S. L., Tonello, A., Wabnitz, S.   +13 more
core   +1 more source

Optically active mechanical modes of tapered optical fibers [PDF]

Physical Review A, 2013
Tapered optical fibers with a nanofiber waist are widely used tools for efficient coupling of light to photonic devices or quantum emitters via the nanofiber's evanescent field. In order to ensure well-controlled coupling, the phase and polarization of the nanofiber guided light field have to be stable.
Wuttke, C., Cole, G.D., Rauschenbeutel, Arno   +2 more
openaire   +3 more sources

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

Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching

IEEE Photonics Journal, 2017
This paper presents a fabrication method for 2 × 2 twisted fiber-optic directional couplers based on biconical low-loss tapered optical fibers using a two-step wet-etching technique with hydrofluoric acid-based droplets and surface tension-driven ...
Gyeongho Son, Youngho Jung, Kyoungsik Yu
doaj   +1 more source

Generation and subwavelength focusing of longitudinal magnetic fields in a metallized fiber tip [PDF]

, 2014
We demonstrate experimentally and numerically that in fiber tips as they are used in NSOMs azimuthally polarized electrical fields (|E$_{\text{azi}}$|$^2$/|E$_{\text{tot}}$|$^2$ $\approx$ 55% $\pm $ 5% for 1.4\mu m tip aperture diameter and \lambda$_0$ =
Banzer, Peter, Kriesch, Arian, Peschel, Ulf, Pfeifer, Hannes, Ploss, Daniel   +4 more
core   +3 more sources

Stretching the Printability Metric in Direct‐Ink Writing with Highly Extensible Yield‐Stress Fluids

Advanced Functional Materials, EarlyView.
This study introduces “drawability” as a new metric for assessing printability in direct‐ink writing, focusing on gap‐spanning performance and speed robustness. By designing yield‐stress fluids with high extensibility, we demonstrate that extensional strain‐to‐break significantly enhances printability.
Chaimongkol Saengow, Samya Sen, Joaquin Yus, Eliza E. Lovrich, Amanda G. Hoika, Kelly M. Chang, Arielle A. Pfeil, Nellie Haug, Amy J. Wagoner Johnson, Randy H. Ewoldt   +9 more
wiley   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Ultrahigh resolution radiation imaging system using an optical fiber structure scintillator plate

Scientific Reports, 2018
High resolution imaging of radiation is required for such radioisotope distribution measurements as alpha particle detection in nuclear facilities or high energy physics experiments.
Seiichi Yamamoto, Kei Kamada, Akira Yoshikawa   +2 more
doaj   +1 more source

Absorbance response of graphene oxide coated on tapered multimode optical fiber towards liquid ethanol [PDF]

Journal of the European Optical Society-Rapid Publications, 2015
The investigation of graphene oxide (GO) for sensing applications is attractive due to its nanoscale structure and its sensing properties has yet to be fully understood. In this paper, optical response of GO coated optical fiber sensor towards ethanol is
Girei S. H., Shabaneh A. A., Lim H. M., Huang N. M., Mahdi M. A., Yaacob M. H.   +5 more
doaj   +1 more source

Fiber-optical switch controlled by a single atom

, 2013
We demonstrate highly efficient switching of optical signals between two optical fibers controlled by a single atom. The key element of our experiment is a whispering-gallery mode bottle microresonator, which is coupled to a single atom and interfaced by
Junge, Christian, O'Shea, Danny, Rauschenbeutel, Arno, Volz, Jürgen   +3 more
core   +2 more sources