Results 61 to 70 of about 25,004 (226)

Synergistic Sunlight‐Activated Photodynamic and Near‐Infrared‐Induced Mild Photothermal Therapy for Infected Wound Healing Using Functionalized Nano‐Bi2WO6 Composites

Advanced Science, EarlyView.
This work proposes a multifunctional Bi2WO6:Yb,Er@CuS@CS nanocomposite that integrates photodynamic therapy (PDT), near‐infrared‐triggered photothermal therapy (PTT), and Cu2+ release for infected wound repair. The nanocomposite demonstrates enhanced antibacterial efficacy via combined PDT, PTT, and Cu2+ release, effective immunomodulatory by mild ...
Yihao Sun, Liangrui He, Zhijun Shen, Yuxin Zhang, Yizhang Tang, Xujiang Yu, Jisi Zheng, Moran Huang, Wanwan Li, Lei Wang   +9 more
wiley   +1 more source

Laser Sources Based on Rare-Earth Ion Doped Tellurite Glass Fibers and Microspheres

Fibers, 2020
In recent years, huge progress has been made in the development of rare-earth ion doped tellurite glass laser sources, ranging from watt- and multiwatt-level fiber lasers to nanowatt level microsphere lasers.
Elena A. Anashkina
doaj   +1 more source

Hybrid Raman-erbium random fiber laser with a half open cavity assisted by artificially controlled backscattering fiber reflectors

Scientific Reports, 2021
A hybrid Raman-erbium random fiber laser with a half-open cavity assisted by chirped artificially controlled backscattering fiber reflectors is presented.
R. A. Perez-Herrera, P. Roldan-Varona, M. Galarza, S. Sañudo-Lasagabaster, L. Rodriguez-Cobo, J. M. Lopez-Higuera, M. Lopez-Amo   +6 more
doaj   +1 more source

Dispersion Management and Pulse Characterization of Graphene-Based Soliton Mode-Locked Fiber Lasers

Applied Sciences, 2022
This paper presents the generation and characterization of femtosecond pulses utilizing graphene-polymethyl-methacrylate (PMMA) thin-film saturable absorber (SA), which is subjected to different lengths of single-mode fiber (SMF) in an erbium-doped fiber
Ahmad Fauzi Abas, Kuen Y. Lau, Wazie M. Abdulkawi, Mohammed T. Alresheedi, Farah D. Muhammad, Mohd Adzir Mahdi   +5 more
doaj   +1 more source

Dual Physiological Barriers Bypassed by a Silk‐Based Supramolecular Protein Delivery Platform for Neuroinflammation Mitigation in Alzheimer's Disease

Advanced Science, EarlyView.
A supramolecular nanocomplex based on phenolic‐modified silk sericin is developed to deliver antioxidant enzymes across the blood–brain barrier and escape lysosomal degradation. This dual‐barrier‐crossing system reduces neuroinflammation and improves cognitive performance in Alzheimer's disease mouse model, offering a promising strategy for protein ...
Doudou Hu, Tiandong Li, Jian He, Yujian Jiang, Yeyuan Wang, Jingchen Sun   +5 more
wiley   +1 more source

Optimization of Erbium-Doped Fiber to Improve Temperature Stability and Efficiency of ASE Sources

Photonics
The ASE (Amplified Spontaneous Emission) light source, based on erbium-doped fiber (EDF), is a broadband light source with advantages such as high power, excellent temperature stability, and low coherent light generation.
Jia Guo, Hao Zhang, Wenbin Lin, Wei Xu
doaj   +1 more source

Efficient and Compact Optical Amplifier Using EYDF

International Islamic University Malaysia Engineering Journal, 2010
An efficient Erbium/Ytterbium doped fiber amplifier (EYDFA) is demonstrated using a 1058nm pumping wavelength, where the amplification is assisted by energy transfer between Yb and Er ions.
Sulaiman Wadi Harun, K. Dimyati, M. R. Tamjis, S. Z. Muhd-Yassin, M. K. Abd-Rahman, H. Ahmad   +5 more
doaj   +1 more source

Femtosecond Pulsed Fiber Laser by an Optical Device Based on NaOH-LPE Prepared WSe₂ Saturable Absorber

Nanomaterials, 2022
We report on all-optical devices prepared from WSe2 combined with drawn tapered fibers as saturable absorbers to achieve ultrashort pulse output. The saturable absorber with a high damage threshold and high saturable absorption characteristics is ...
Si Chen, Fengpeng Wang, Fangguang Kuang, Shuying Kang, Hanwen Liang, Lijing Zheng, Lixin Guan, Qing Wu   +7 more
doaj   +1 more source

Evaluation of the optical switching characteristics of erbium-doped fibres for the development of a fibre Bragg grating sensor interrogator [PDF]

, 2014
A polling topology that employs optical switching based on the properties of erbium-doped fibres (EDFs) is used to interrogate an array of FBGs. The properties of the EDF are investigated in its pumped and un-pumped states and the EDFs’ switching ...
Bhattacharyya, Debabrata, Correia, Ricardo N., James, Stephen W., Kirby, Paul B., Rigas, E., Savaidis, S. P., Stathopoulos, N. A., Tatam, Ralph P.   +7 more
core   +1 more source

Degradation Mechanisms of Rutile‐Type TiO2 Photoanodes during Photoelectrochemical Water Splitting

Advanced Energy Materials, EarlyView.
Combining operando dissolution measurements with microscopy and spectroscopy characterizations, we reveal different degradation mechanisms of rutile‐type TiO2 photoanodes during photoelectrochemical water splitting. In acidic electrolytes, degradation is inhibited once TiO2 reaches saturation.
Yiqun Jiang, Raquel Aymerich‐Armengol, Ilias Efthimiopoulos, Martin Rabe, Andrea M. Mingers, Ningyan Cheng, Benjamin Breitbach, Saswati Santra, Verena Streibel, Ian D. Sharp, Lilian Vogl, Christina Scheu, Siyuan Zhang   +12 more
wiley   +1 more source