Results 71 to 80 of about 713 (248)

All-Normal Dispersion Hole-Assisted Silica Fibers for Generation of Supercontinuum Reaching Midinfrared

IEEE Photonics Journal, 2016
A design of technologically feasible hole-assisted silica fibers with all-normal dispersion was proposed and optimized for maximum dispersion located, respectively, at 1.55 and 1.97 $\mu\text{m} $.
K. Tarnowski, W. Urbanczyk
doaj   +1 more source

Emission and absorption cross section of thulium doped silica fibers

Optics Express, 2006
A thorough investigation of the emission and absorption spectra of the (3F4,3H6) band in thulium doped silica fibers has been performed. All the basic parameters of thulium in silica have been extracted with the purpose of further analysis in laser and amplifier simulations.
Agger, Søren Dyøe, Povlsen, Jørn Hedegaard   +1 more
openaire   +3 more sources

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source

Generation of Polyamide 12 Coatings on Stainless Steel Substrates by Directed Energy Deposition with a Thulium-Doped Fiber Laser (DED-LB/P). [PDF]

Polymers (Basel), 2022
Wittmann A, Hentschel O, Sommereyns A, Schmidt M.   +3 more
europepmc   +1 more source

Breaking the Durability–Power Trade‐Off: Boron‐Directed Faceted O3 Cathodes for High‐Rate Sodium‐Ion Batteries

Advanced Energy Materials, EarlyView.
Boron‐oxide‐assisted particle engineering stabilizes O3‐type layered cathodes for sodium‐ion batteries by mitigating phase transitions and lattice strain. Acting as flux and structural modifier, boron forms submicron hexagonal platelets with (003) facets and expanded Na‐layer spacing, enabling rapid Na⁺ diffusion and mechanical resilience.
Tengfei Song, Alexis Manche, Dongrui Xie, Bowen Liu, Chenglong Wu, Bo Dong, Reda Malakauskaite, Manoj Ovhal, David O. Scanlon, Emma Kendrick   +9 more
wiley   +1 more source

Clinical periodontal diagnosis

Periodontology 2000, EarlyView., 2023
Abstract Periodontal diseases include pathological conditions elicited by the presence of bacterial biofilms leading to a host response. In the diagnostic process, clinical signs such as bleeding on probing, development of periodontal pockets and gingival recessions, furcation involvement and presence of radiographic bone loss should be assessed prior ...
Giovanni E. Salvi, Andrea Roccuzzo, Jean‐Claude Imber, Alexandra Stähli, Björn Klinge, Niklaus P. Lang   +5 more
wiley   +1 more source

High power tandem-pumped thulium-doped fiber laser

Optics Express, 2015
We propose a cascaded tandem pumping technique and show its high power and high efficient operation in the 2-μm wavelength region, opening up a new way to scale the output power of the 2-μm fiber laser to new levels (e.g. 10 kW). Using a 1942 nm Tm(3+) fiber laser as the pump source with the co- (counter-) propagating configuration, the 2020 nm Tm(3 ...
Yao, Wang, Jianlong, Yang, Chongyuan, Huang, Yongfeng, Luo, Shiwei, Wang, Yulong, Tang, Jianqiu, Xu   +6 more
openaire   +2 more sources

Engineering Na‐Rich P2‐Type Layered Oxides Through Li/Ti Dual Doping for Oxygen Redox Activation and Superior Structural Stability

Advanced Energy Materials, EarlyView.
P2‐type sodium layered oxides have potential for high‐voltage operation but suffer from structural instability and capacity fading. This work demonstrates that synergistic Li and Ti co‐doping enhances sodium inventory, suppresses detrimental phase transitions, and activates reversible lattice oxygen redox.
Rishika Jakhar, Shrestha Ghosh, Adesh Rohan Mishra, Shristi Pradhan, Debalina Sarkar, Yuanlong Bill Zheng, Zengqing Zhuo, Tianyi Li, Lu Ma, Minghao Zhang, Shyue Ping Ong, Matthew Li, Leeann Sun, Prabhat Thapliyal, Jing Wang, Abhik Banerjee, Ying Shirley Meng   +16 more
wiley   +1 more source

Stable Four-Wavelength Switchable Narrow-Linewidth Thulium-Holmium Co-Doped Fiber Laser Based on Dual-Cascaded PM-FBGs

IEEE Photonics Journal
This paper proposes a stable four-wavelength switchable narrow-linewidth thulium-holmium co-doped fiber laser based on dual-cascaded polarization-maintaining fiber Bragg gratings (PM-FBGs).
Chenhao Yu, Fengping Yan, Dandan Yang, Darui Xu, Yuezhi Cai, Haoyu Tan, Jiawen Liu, Jianan Xu, Ting Li   +8 more
doaj   +1 more source

2 μm passively mode-locked thulium-doped fiber lasers with Ta₂AlC-deposited tapered and side-polished fibers. [PDF]

Sci Rep, 2021
Ahmad H, Azri MFM, Ramli R, Samion MZ, Yusoff N, Lim KS.   +5 more
europepmc   +1 more source