Results 21 to 30 of about 11,591 (119)
Use of combined picosecond 1064nm and thulium laser 1927nm in melasma treatment – case report
Journal of Education, Health and Sport, 2022 Melasma is an acquired, chronic skin pigmentation disorder that affects mainly women and can significantly affect the quality of life and self-esteem of patients.
Urszula Kozinska, Jordi Gras-Ozimek
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Self-Guided Intense Laser Pulse Propagation in Air
Nonlinear Analysis, 2001 We report on observation of self-guiding of picosecond laser pulses in air that produces large-scale self-phase modulation. The converging picosecond laser beam produced a confined filament over 3 m of propagation with the whitelight spectrum.
R. Danielius +3 more
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10 kHz repetition rate picosecond green laser for high-accuracy satellite ranging
Frontiers in Physics, 2023 Picosecond pulse laser is the main light source for satellite laser ranging. In this paper, a 10 kHz repetition rate picosecond green laser with an average output power of 5.3 W is demonstrated.
Zhongwei Fan +7 more
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Laser Removal of Cosmetic Eyebrow Tattoos with a Picosecond Laser
Dermato, 2023 This current retrospective study, including 98 patients aged 21 to 71 years, aims to assess the safety and the efficiency of a picosecond 755 nm/532 nm laser in the removal of complex eyebrows tattoos. Patients were treated with a picosecond laser at 755
Candice Menozzi-Smarrito +1 more
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Scientific ReportsExcessive fertilizer and chemical usage have led to soil contamination by toxic heavy metals near the Abu-Zaabal industrial complex in Egypt. We introduce a groundbreaking calibration-free methodology using ultrafast Picosecond Laser-Induced Plasma ...
Mohamed El-Saeed +4 more
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MicromachinesWe report on fabricating planoconcave lenses using a picosecond 355 nm wavelength laser and a CO2 laser. We also report the fabrication of the planoconvex microlens array on fused silica by patterned micromachining using a picosecond laser and reshaping ...
Narayana R. Gottumukkala +2 more
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The influence of the excitation pulse length on ultrafast magnetization dynamics in nickel
Structural Dynamics, 2015 The laser-induced demagnetization of a ferromagnet is caused by the temperature of the electron gas as well as the lattice temperature. For long excitation pulses, the two reservoirs are in thermal equilibrium.
A. Fognini +5 more
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Sub-Picosecond Micromachining of Monocrystalline Silicon for Solar Cell Manufacturing
Applied Sciences, 2020 In this study a prototype sub-picosecond laser was investigated for cutting and scribing of silicon wafers. The Yb:KYW laser used for this investigation, unlike ultrashort systems used previously, generates pulses of 650 fs, i.e., between the pico and ...
Katarzyna Garasz, Marek Kocik
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Towards shaping picosecond strain pulses via magnetostrictive transducers
Photoacoustics, 2023 Using time-resolved x-ray diffraction, we demonstrate the manipulation of the picosecond strain response of a metallic heterostructure consisting of a dysprosium (Dy) transducer and a niobium (Nb) detection layer by an external magnetic field. We utilize
Maximilian Mattern +4 more
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Results in OpticsA distributed feedback picosecond (DFB) pulse laser has been designed with a single pulse energy of 5 pJ and a pulse width of 200 ps, resulting in a spectrum width of 0.12 nm.
Mingliang Long +7 more
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