Results 61 to 70 of about 14,779 (263)

Achieving a 4 kW Raman fiber amplifier with the assistance of four-wave mixing

High Power Laser Science and Engineering
Raman fiber lasers, known for their capacity to provide both high-power and precise wavelength emissions, are gaining attraction across a spectrum of applications, including fiber optic communications, sensing, spectroscopy and imaging.
Chenchen Fan, Tianfu Yao, Xiulu Hao, Yang Li, Jinyong Leng, Pu Zhou   +5 more
doaj   +1 more source

Actively mode-locked Raman fiber laser

Optics Express, 2015
Active mode-locking of Raman fiber laser is experimentally investigated for the first time. An all fiber connected and polarization maintaining loop cavity of ~500 m long is pumped by a linearly polarized 1120 nm Yb fiber laser and modulated by an acousto-optic modulator.
Xuezong, Yang, Lei, Zhang, Huawei, Jiang, Tingwei, Fan, Yan, Feng   +4 more
openaire   +2 more sources

Combating Inflammation and Promoting Anabolism in Osteoarthritic Cartilage Defect With an MMP13‐Sensing Dual‐Drug Scaffold

Advanced Science, EarlyView.
ABSTRACT Osteoarthritis (OA) is a widespread degenerative joint condition marked by progressive cartilage breakdown, and a chronic inflammatory microenvironment, where conventional therapies largely fail to halt disease progression. To address this unmet need, an intra‐articularly implantable, disease‐responsive scaffold was developed for combinatorial
Zhen Zhang, Bangheng Liu, Yulei Mu, Huiqun Zhou, Liang Ma, Chenjie Xu, Dong‐An Wang   +6 more
wiley   +1 more source

Biofilm‐Binding Phages Enhance Biofilm Eradication by Synergistic Photothermal and Photodynamic Therapy

Advanced Science, EarlyView.
Engineered phage‐based trifunctional nanofibers are developed for synergistic biofilm eradication. Biofilm‐binding phages, armed with AuNPs and TCPP, serve as both warheads and scaffolds, endowing the phototherapy agents with biofilm‐anchoring ability. Upon light irradiation, AuNPs induce photothermal therapy, while TCPP generates 1O2 for photodynamic ...
Ying Cao, Tao Yang, Rui Wang, Hui‐Da Li, Xiao‐Yu Zhang, Feng Cheng, Ying Liu, Jian‐Hua Wang, Ting Yang, Chuanbin Mao   +9 more
wiley   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

A 2 kW fully open cavity random Raman fiber laser employing tapered fiber

High Power Laser Science and Engineering
Recent advancements in random distributed feedback Raman fiber lasers have promoted random Raman fiber lasers (RRFLs) as a novel laser source with significant progress.
Xiangming Meng, Jinming Wu, Xiao Chen, Hanwei Zhang, Wang Peng, Hanshuo Wu, Xiaoming Xi, Zhiyong Pan, Xiaolin Wang, Jinbao Chen   +9 more
doaj   +1 more source

An investigation into Raman mode locking of fiber lasers

Optics Express, 2008
We present a detailed experimental and modeling study of fiber lasers passively mode locked using stimulated Raman scattering. We present experimental measurements of the mode locking behavior, and use the model to elucidate the nonlinear processes that create the intracavity pulses and determine the repetition rate and the order of fundamental and ...
David J, Spence, Yucheng, Zhao, Stuart D, Jackson, Richard P, Mildren   +3 more
openaire   +2 more sources

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

Advanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen, Wei Zeng, Zherui Zhao, JiYu Zhao, Ziyan Huang, Zhuo Chen, Kui Zhou, Guanglong Ding, Su‐Ting Han, Ye Zhou   +9 more
wiley   +1 more source

Fundamentals of Thermal Transport and Energy Conversion in Ultra‐High Temperature Ceramics: From Microscale Mechanisms to Macroscopic Properties

Advanced Science, EarlyView.
This review critically examines thermal transport and radiative properties of ultra‐high temperature ceramics for hypersonic flight, advanced nuclear systems, and next‐generation energy conversion devices. It explores phonon–photon–electron interactions, microstructural engineering, thermoelectric conversion, and machine learning‐accelerated multiscale
Zhipeng Pei, Yue Li, Jiayu Xing, Yue Zhu, Ru Zhang, Huan Wu, Zihao Qin, Gang Pei, Man Li   +8 more
wiley   +1 more source

A 1.8 kW high power all-fiber Raman oscillator

High Power Laser Science and Engineering
Fiber Bragg grating-based Raman oscillators are capable of achieving targeted frequency conversion and brightness enhancement through the provision of gain via stimulated Raman scattering across a broad gain spectrum.
Chenchen Fan, Xiulu Hao, Yang Li, Min Fu, Zilun Chen, Tianfu Yao, Jinyong Leng, Pu Zhou   +7 more
doaj   +1 more source