Results 11 to 20 of about 7,511 (256)
Ultrafast 3.5 µm fiber laser [PDF]
Optics Letters, 2021 We report, to the best of our knowledge, the first mode-locked fiber laser to operate in the femtosecond regime well beyond 3 µm. The laser uses dual-wavelength pumping and nonlinear polarization rotation to produce 3.5 µm wavelength pulses with minimum duration of 580 fs at a repetition rate of 68 MHz.
Nathaniel Bawden +3 more
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Distributed ultrafast fibre laser [PDF]
Scientific Reports, 2015 AbstractA traditional ultrafast fibre laser has a constant cavity length that is independent of the pulse wavelength. The investigation of distributed ultrafast (DUF) lasers is conceptually and technically challenging and of great interest because the laser cavity length and fundamental cavity frequency are changeable based on the wavelength.
Liu, X. +5 more
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Ultrafast Laser Welding of Silicon
Advanced Photonics Research, 2023 While ultrafast laser welding is an appealing technique for bonding transparent workpieces, it is not applicable for joining silicon samples due to nonlinear propagation effects which dramatically diminish the possible energy deposition at the interface.
Maxime Chambonneau +4 more
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Brain Sciences, 2021 Defining the relationship between vascular development and the expression of hypoxia-inducible factors (Hifs) and vascular endothelial growth factor (Vegf) in the auditory brainstem is important to understand how tissue hypoxia caused by oxygen shortage ...
Daphne Chang +6 more
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Carbon nanotube mode-locked fiber lasers: recent progress and perspectives
Nanophotonics, 2020 Carbon nanotubes (CNTs) possess remarkable nonlinear optical properties; a particular application is to function as a mode locker used in ultrafast fiber lasers to produce ultrashort optical pulses.
Dai Lilong +7 more
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Ultrafast Pulse Generation from Quantum Cascade Lasers
Micromachines, 2022 Quantum cascade lasers (QCLs) have broken the spectral barriers of semiconductor lasers and enabled a range of applications in the mid-infrared (MIR) and terahertz (THz) regimes. However, until recently, generating ultrashort and intense pulses from QCLs
Feihu Wang +4 more
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Ultrafast laser welding of ceramics [PDF]
Science, 2019 Joining the laser welding club Laser welding is an integral part of modern manufacturing, but it fractures ceramic materials. Penilla et al. developed two methods for welding ceramics using ultrafast lasers. One method tunes the ceramic properties, allowing the laser to transit through the ceramic and weld
E. H. Penilla +8 more
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Towards Ultimate High-Power Scaling: Coherent Beam Combining of Fiber Lasers
Photonics, 2021 Fiber laser technology has been demonstrated as a versatile and reliable approach to laser source manufacturing with a wide range of applicability in various fields ranging from science to industry.
Hossein Fathi +2 more
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Powerscaling of Ultrafast Lasers [PDF]
Laser Technik Journal, 2010 AbstractToday, ultra‐short laser pulses have found widespread applications in metrology, atomic, molecular, solid‐state, plasma and nuclear physics. Ultra‐precise machining of nearly every material is possible based on an almost non‐thermal processing.
Peter Rußbüldt +4 more
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The amazing progress of high-power ultrafast thin-disk lasers
Journal of the European Optical Society-Rapid Publications, 2019 Ultrafast lasers continue to be at the forefront of many scientific breakthroughs and technological achievements and progress in the performance of these systems continue to open doors in many new and exciting interdisciplinary fields.
Clara J. Saraceno +3 more
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