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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
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
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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
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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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Journal of Materials Research and Technology, 2022 In this paper, the focus rotation has been adopted in the fiber laser butt welding of 4 mm thick Selective Laser Melting GH3536 and rolled solid solution GH3128. The weld morphology, microstructure, microhardness, joint strength and fracture morphologies
Zhiwei Cheng +6 more
doaj +1 more source
In situ measurement of particle flow during fiber laser additive manufacturing with powder feeding
Results in Physics, 2022 In situ measurement of particle flow is a promising tool to visualize how the particles affect the power feeding laser additive manufacturing (PFLAM).
Jianglin Zou +4 more
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Broadband, high power THz source at 540 kHz using organic crystal BNA
APL Photonics, 2023 We demonstrate efficient optical rectification in the organic crystal BNA (N-benzyl-2-methyl-4-nitroaniline), driven by a temporally compressed, commercially available industrial Yb-laser system operating at a 540 kHz repetition rate. Our terahertz (THz)
Samira Mansourzadeh +5 more
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In situ detection of plume particles in intelligent laser welding
Materials & Design, 2022 This study aimed to propose the in situ measurement of particles based on the self-mixing interferometry (SMI) effect for monitoring the dynamic behaviors of the plume. This method was verified through the in situ measurement of tiny moving metal objects.
Jianglin Zou +4 more
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Effect of Laser-Textured Cu Foil with Deep Ablation on Si Anode Performance in Li-Ion Batteries
Nanomaterials, 2023 Si is a highly promising anode material due to its superior theoretical capacity of up to 3579 mAh/g. However, it is worth noting that Si anodes experience significant volume expansion (>300%) during charging and discharging.
Jingbo Wang +5 more
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