Results 61 to 70 of about 629 (208)

Temperature investigation of low SWaP thulium-doped fiber lasers

Optics Express
We investigate the temperature dependence of an in-band core-pumped thulium-doped fiber laser with a low SWaP (size, weight, and power) architecture. The temperature investigation is carried out both experimentally and numerically by a simulation model.
Dieter Panitzek, Clément Romano, Marc Eichhorn, Christelle Kieleck   +3 more
openaire   +3 more sources

Harmonizing Rigidity and Flexibility: Embedding COF Quantum Dots Into Extracellular Matrix Gel as Carbon Monoxide Depot for Acoustically Triggered Time‐Programmable Anti‐Infective Therapy

Advanced Science, EarlyView.
A rigid‑flexible integrated CO depot is engineered by embedding rigid COFQDs into a flexible ECM gel network. The rigid framework enables high‑capacity CO storage and sonodynamic bacterial killing, while the flexible ECM gel controls sustained CO release, collectively eradicating multidrug‑resistant infection and promoting scarless healing.
Baohong Sun, Fang Han, Chunxiao Zhu, Zhiyuan Yang, Haoru Wang, Jinpei Mei, Jie Chen, Jingwen Zhu, Zihan Bo, Taju Wu, Xiaogang Zhou, Tao Ma, Yutian Su, Youhui Lin   +13 more
wiley   +1 more source

Multiwavelength Thulium-Doped Fiber Laser Using a Micro Fiber-Optic Fabry–Perot Interferometer

IEEE Photonics Journal, 2018
A compact, all-fiberized multiwavelength thulium-doped fiber laser based on a micro fiber-optic Fabry–Perot interferometer (FPI) and a nonlinear optical loop mirror (NOLM) has been demonstrated.
Meng Wang, Yijian Huang, Li Yu, Zongpeng Song, Dezhi Liang, Shuangchen Ruan   +5 more
doaj   +1 more source

Thulium-doped fiber laser with longitudinally segmented active fiber

Eighth International Workshop on Specialty Optical Fibers and Their Applications (WSOF 2025)
Nowadays, one of the main challenges of thulium-doped fiber lasers is thermal management. One prospective method to significantly reduce thermal load density along the fiber is using a segmented active fiber or active fiber with a longitudinal gradient of thulium-doping concentration.
Švejkarová, Bára, Grabner, Martin, Pokorný, Jan, Aubrecht, Jan, Švejkar, Richard, Clarkson, W. Andrew, Kamrádek, Michal, Podrazký, Ondřej, Kasik, Ivan, Honzatko, Pavel, Peterka, Pavel   +10 more
openaire   +1 more source

Pyrazole‐Derived Antibacterial Compounds Effectively Treat Methicillin‐Resistant Staphylococcus Aureus Infections by Inhibiting Aspartate Transcarbamoylase

Advanced Science, EarlyView.
This study unveils a novel antibacterial mechanism against MRSA, in which the compound Py‐27 selectively targets and inhibits aspartate transcarbamoylase (ATCase), a key enzyme in pyrimidine synthesis. This inhibition disrupts DNA replication, induces oxidative damage, leading to potent bactericidal activity.
Xiaorong Yang, Xinyuan Cao, Lixia Dai, Feng Yang, Jing Wang, Yudong Ma, Tong Bu, Zile Gong, Xueyan Liu, Changcai Bai, Xiaolou Miao, Xiaofei Shang   +11 more
wiley   +1 more source

Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells

Advanced Energy Materials, EarlyView.
Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu, Yufei Zhang, Han Zhao, Pooi See Lee, Daniel H.C. Chua   +4 more
wiley   +1 more source

Optical spectra of fiber lasers operating at two microns

Open Physics
This letter compares the optical spectra of holmium- and thulium-doped silica fiber lasers operating in the continuous-wave regime with an output power of about 10 W.
Barmenkov Yuri, Muniz-Canovas Pablo, Alatorre-Félix Miriam A., Aboites Vicente   +3 more
doaj   +1 more source

Harnessing blood clot as a native scaffold for orchestrating tissue repairs and regeneration

BMEMat, EarlyView.
The blood clot, owing to its dynamic composition and unique microenvironment, holds significant yet underappreciated potential for tissue engineering. This review systematically summarizes the pathophysiology of clot formation, the key regulatory factors shaping its microenvironment, and its applications in both pre‐clinical and clinical settings ...
Gao‐peng Dang, Yu‐zhu Wang, Yi‐fei Wang, Que Bai, Jia‐xin Hao, Zhi‐ting Li, Xiao‐qing Cao, Yu Wei, Yue Feng, Ji‐hua Chen, Franklin R. Tay, Rui‐bing Wang, Jun‐ting Gu, Li‐na Niu   +13 more
wiley   +1 more source

Semiconducting Polymer Dots as Saturable Absorbers for Mode-Locked Thulium-Doped Fiber Lasers

IEEE Access, 2020
We demonstrated an all-fiber passively mode-locked thulium-doped fiber laser (TDFL) using organic semiconducting polymer dots (Pdots) based saturable absorber (SA).
Fang Wang, Yue Sun, Xuenan Zhang, Shuguang Li, Tonglei Cheng   +4 more
doaj   +1 more source

Thulium-doped optical fibers for fiber lasers operating at around 2 µm

Bulletin of the Polish Academy of Sciences Technical Sciences, 2019
The paper deals with spectral and lasing characteristics of thulium-doped optical fibers fabricated by means of two doping techniques, i.e. via a conventional solution-doping method and via a nanoparticle-doping method. The difference in fabrication was the application of a suspension of aluminum oxide nanoparticles of defined size instead of a ...
Kašík, I. (Ivan), Kamrádek, M. (Michal), Aubrecht, J. (Jan), Peterka, P. (Pavel), Podrazký, O. (Ondřej), Cajzl, J. (Jakub), Mrázek, J. (Jan), Honzátko, P. (Pavel)   +7 more
openaire   +2 more sources