Results 81 to 90 of about 277,643 (298)

Ultrafast high power Yb:KLuW regenerative amplifier

Optics Express, 2009
We report on an high power ultra-short pulse regenerative Yb:KLuW amplifier based on the thin disk concept. A maximum pulse energy of 571 microJ was extracted at a repetition rate of 20 kHz. Compression of the output pulses resulted in a pulse duration of 197 fs assuming a deconvolution factor of 2.16.
H, Sayinc, U, Buenting, D, Wandt, J, Neumann, D, Kracht   +4 more
openaire   +2 more sources

Advancing Human Skin Equivalents: The Crucial Role of Neurovascular Integration

Advanced Healthcare Materials, EarlyView.
This review discusses the importance of integrating vascular and peripheral nerve systems into human skin equivalents (HSEs) to better recapitulate native skin physiology. Recent advances in vascularized, innervated, and neurovascularized HSEs are highlighted, together with emerging bioengineering strategies, current challenges, and future ...
Hao Wu, Lorenzo Moroni, Nicolas Lebonvallet, Vincent Flacher, Paul Wieringa   +4 more
wiley   +1 more source

A wavelength-preserving all-optical 3r regenerator

Communications, 2004
A novel all-optical 3R regenerator operated in the optically clocked scheme (OC-3R) is presented. The regenerator basically comprises two semiconductor components: an ultra-long semiconductor optical amplifier (UL-SOA) for effective use of fast ...
J. Slovak, C. Bornholdt, B. Sartorius
doaj   +1 more source

TI-SAPPHIRE REGENERATIVE AMPLIFIER FOR ULTRASHORT HIGH-POWER MULTIKILOHERTZ PULSES WITHOUT AN EXTERNAL STRETCHER

, 2019
We report a simple and robust Ti:sapphire regenerative amplifier without prepulse stretching. Pulse stretching by positive group-velocity dispersion and negative third-order dispersion are provided by highly dispersive flint glass prisms inside the ...
JOO, T, JIA, YW, FLEMING, GR
core   +1 more source

Stabilizing the carrier-envelope phase of a 30 fs, 1 kHz, 6 mJ Ti: sapphire regenerative amplifier [PDF]

, 2010
Carrier-envelope phase stabilization of a two-stage chirped pulse amplifier laser system with regenerative amplification as the preamplifier is demonstrated with a 90 mrad rms error for a locking period of 4.5 ...
Yun, Chenxia, He Wang, Wang, He, Mashiko, Hiroki, Chenxia Yun, Michael Chini, Chen, Shouyuan, Zenghu Chang, Chini, Michael, Wu, Yi, Hiroki Mashiko, Yi Wu, Chang, Zenghu, Shouyuan Chen   +13 more
core   +1 more source

GDNF‐Enriched Small Extracellular Vesicle‐Loaded ROS‐Scavenging Hydrogel Promotes Neural Regeneration After Spinal Cord Injury

Advanced Healthcare Materials, EarlyView.
A glial cell line‐derived neurotrophic factor (GDNF)‐enriched small extracellular vesicle‐loaded reactive oxygen species (ROS)‐scavenging hydrogel integrates sustained neurotrophic delivery with local modulation of oxidative and inflammatory stress after spinal cord injury. The composite hydrogel improves local vesicle retention, protects neural tissue,
Xingyu Zhu, Zhong Liu, Kewei Li, Yuhong Fan, Kangjia Yang, Xiaopeng Sun, Hang Shi, Lixuan Sun, Yang Lou, Min Wang, Peipei Wu, Hui Qian, Qiang Fu, Hua Ding   +13 more
wiley   +1 more source

Generation and Characterization of Mid-Infrared Supercontinuum in Bulk YAG Pumped by Femtosecond 1937 nm Pulses from a Regenerative Amplifier

Applied Sciences, 2019
We have demonstrated the generation of supercontinuum (SC) pulses in bulk, using femtosecond pulses directly derived from a Tm:YAP regenerative amplifier. The SC spans from 380 nm−4 μ m.
Seyed Ali Rezvani, Yutaka Nomura, Takao Fuji   +2 more
doaj   +1 more source

First Lasing of the Regenerative Amplifier FEL [PDF]

, 1998
The Regenerative Amplifier Free-Electron Laser (RAFEL) is a high-gain RF-linac FEL capable of producing high optical power from a compact design. The combination of a high-gain and small optical feedback enables the FEL to reach saturation and produce a ...
Ebrahim, N. A., Sheffield, R. L., Nguyen, D. C., Kinross-Wright, J. M., Fortang, C. M., Goldstein, J. C.   +5 more
core  

Microfluidic Engineering of Microgels: A Review of Emerging Technologies, Materials, Fabrication Strategies, and Applications

Advanced Healthcare Materials, EarlyView.
Recent advances in microfluidic technologies for microgel fabrication are critically reviewed, highlighting the capabilities and limitations of major microfluidic platforms and discussing how platform design, material selection, and crosslinking strategies influence microgel architecture and functionality. Current challenges and future opportunities in
Afshin Abrishamkar, Laura Neely, Cynthia Pham, Nada Ibrahim, Alexis Larios‐Cervantes, Ben A. Kertesz, Todd Hoare   +6 more
wiley   +1 more source

Broadband, picosecond two-stage optical parametrical chirped pulse amplification system at 100 Hz

Physical Review Accelerators and Beams, 2019
We report on a broadband, picosecond two-stage optical parametrical chirped pulse amplification system, pumped at 515 nm by a frequency doubled Yb regenerative amplifier.
Mario Galletti, Giedre Archipovaite, Pedro Oliveira, Marco Galimberti, Ian Musgrave, Cristina Hernandez-Gomez   +5 more
doaj   +1 more source