Results 11 to 20 of about 99,111 (295)
Ultrafast Laser Synthesis of Zeolites. [PDF]
Adv MaterResearch has demonstrated that zeolite nucleation and growth can be controlled by fine-tuning chemical composition, temperature, and pressure, resulting in structures with diverse porosities and functionalities. Nevertheless, current energy delivery methods lack the finesse required to operate on the femto- and picosecond timescales of silica ...
Galioglu S +11 more
europepmc +4 more sources
Ultrafast laser welding of ceramics. [PDF]
Science, 2019 Welding of ceramics is a key missing component in modern manufacturing. Current methods cannot join ceramics in proximity to temperature-sensitive materials like polymers and electronic components.
Aguilar, G +9 more
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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
openaire +2 more sources
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
openaire +6 more sources
Laser-Pulse-Length Effects in Ultrafast Laser Desorption. [PDF]
Anal Chem, 2023 Shortening the laser pulse length opens up new opportunities for laser desorption (LD) of molecules, with benefits for mass spectrometry (MS) sampling and ionization. The capability to ablate any material without the need for an absorbing matrix and the decrease of thermal damage and molecular fragmentation has promoted various applications with very ...
Schmidt M +5 more
europepmc +4 more sources
Dual-beam multipass cell compression for time-resolved femtosecond spectroscopy setups [PDF]
EPJ Web of ConferencesWe present a dual-beam single multi-pass cell compressor designed for applications in time-resolved pump-probe spectroscopy. A single MPC simultaneously compresses two beams with different pulse energies to the same pulse duration, allowing for ...
Omar Alan +3 more
doaj +1 more source
Characterizations of welding mode transformation process during 1-μm and 10-μm laser welding
AIP Advances, 2020 To reveal the enhancing energy coupling effect of plasma, a comparison of the welding mode transformation process during 1-µm and 10-µm laser welding of aluminum alloys is carried out through experimental observation and theoretical analysis.
S. H. Guo, J. L. Zou, R. S. Xiao
doaj +1 more source
Laser-driven few-cycle terahertz sources with high average power [PDF]
APL PhotonicsUltrafast laser-driven terahertz sources are gaining in popularity in an increasingly wide range of scientific and technological applications. However, many fields continue to be severely limited by the typically low average power of these sources, which
Robin Löscher +7 more
doaj +1 more source
Dual-tip-enhanced ultrafast CARS nanoscopy [PDF]
, 2013 Coherent anti-Stokes Raman scattering (CARS) and, in particular, femtosecond adaptive spectroscopic techniques (FAST CARS) have been successfully used for molecular spectroscopy and microscopic imaging.
+15 more
core +3 more sources