Results 71 to 80 of about 19,656,779 (288)

Compact Multiwavelength Brillouin Fiber Laser by Utilizing EDF as Hybrid Gain Media

IEEE Photonics Journal, 2015
We have experimentally demonstrated a compact multiwavelength Brillouin fiber laser by introducing an optical feedback mechanism in the laser configuration.
Heng Xie, Junqiang Sun, Danqi Feng, Lifen Qian   +3 more
doaj   +1 more source

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

Advanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang, Xuelin Wu, Yinding Chi, Qingya Huang, Yaoye Hong, Antonio Proctor Martinez, Jingxian Wu, Bingzhi He, Cynthia Sung, Shu Yang   +9 more
wiley   +1 more source

Tunable 30W all-fiber laser emitting around 1850 nm [PDF]

EPJ Web of Conferences
We have demonstrated a tunable polarization maintaining thulium-doped fiber laser spanning the 1830nm-1880nm range with a fiber-coupled output power as high as 30W CW. The high- power booster stage is made using double clad fibers pumped with 793nm laser
Poncelet Kentin, Guiraud Germain, Traynor Nick, Hilico Adèle, Santarelli Giorgio   +4 more
doaj   +1 more source

Fiber-coupled high brightness high power diode laser for solid-state laser pumping and material processing

, 2022
S.47-53Two applications emerge as drivers for higher brightness fiber-coupled diode lasers: advanced solid-state pumping schemes and materials processing.
Ehlers, B., Heinemann, S., Doerfel, F.
core   +1 more source

2D Skeletal Muscle Thin Film Actuators Enhance Efficiency of Biohybrid Robots

Advanced Functional Materials, EarlyView.
2D skeletal muscle thin film actuators generate millinewton‐scale forces and millimeter‐scale strokes while remaining functional for over 30 days. Their force density is 20‐fold higher than 3D skeletal muscle actuators, enabling multi‐fin robots with tunable speed and multidirectional steering.
Maheera Bawa, Arielle Berman, Laura Schwendeman, Ferdows Afghah, Seanbiron Johnson, Ritu Raman   +5 more
wiley   +1 more source

Thermal resilience of polymer-coated double-clad fiber

, 2009
Following the advance of ytterbium-doped fiber laser to kW-level cw-output power, there is a particular interest in using shorter fiber length with large cores since they mitigate detrimental nonlinear effect such as stimulated Raman and Brillouin ...
Jeong, Y., J. Nilsson, Nilsson, J., Codemard, C.A., Y. Jeong, Shirakawa, A., C.A. Codemard, A. Shirakawa, Sahu, J.K., Yoo, S., J.K. Sahu, S. Yoo   +11 more
core   +2 more sources

High Power, High-Order Random Raman Fiber Laser Based on Tapered Fiber

IEEE Photonics Journal, 2017
In this paper, we demonstrate a high power and high-order random Raman fiber laser based on a 1 km novel tapered fiber (TF). The core diameter of the TF gradually increases from 8 μm to 20  μm.
Zhaokai Lou, Xiaoxi Jin, Hanwei Zhang, Pu Zhou, Zejin Liu   +4 more
doaj   +1 more source

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

Advanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

Experimental Demonstration of 1 μm Dual-Wavelength Fiber Laser Based on Cascade Single-Stage Resonant Cavity

IEEE Photonics Journal
Dual-wavelength fiber lasers (DWFL) have tremendous application prospects in industrial processing, electronic countermeasures, biomedicine and so on due to their advantages of flexible dual-wavelength output.
Xinran Li, Yun Ye, Ke Li, Xinyi Ding, Hanshuo Wu, Xiaolin Wang, Weihong Hua   +6 more
doaj   +1 more source

An Epigenetic Fate Converter Based on Nuclei‐Targeting Lipid Nanoparticles Drives Neuronal Programming of Stem Cells for Spinal Cord Repair

Advanced Functional Materials, EarlyView.
Schematic illustration of LNP‐MPG nuclei‐targeting delivery of HMW‐FGF2 promoting histone acetylation to regulate the fate of DPSCs and treat spinal cord injury. LNPs components include pHMW‐FGF2 plasmid, DSPC, Dlin‐MC3‐DMA, cholesterol, and PEG2000, and are modified with MPG to form HMW‐FGF2@LNP‐MPG (HLM). HLM nuclei‐targets DPSCs to deliver HMW‐FGF2,
Heng Zhou, Qiang Qin, Xiqin Li, Hanyu Ding, Chun Xu, Yan He, Qingsong Ye   +6 more
wiley   +1 more source