Results 51 to 60 of about 57,251 (307)
Near- to mid-infrared picosecond optical parametric oscillator based on periodically poled RbTiOAsO4 [PDF]
, 1998 We describe a Ti:sapphire-pumped picosecond optical parametric oscillator based on periodically poled RbTiOAsO4 that is broadly tunable in the near to mid infrared.
Arvidsson, G +6 more
core +1 more source
Picosecond and sub-picosecond pulse generation in semiconductor lasers [PDF]
Journal de Physique III, 1992 Generation of short optical pulses in semiconductor lasers is of practical interest for an increasing number of applications. It is also of fundamental interest because of its tight relation with the field of semiconductor laser dynamics. After an introductory review, we compare the performances of gain-switching, Q-switching and mode-locking ...
Lourtioz, J.-M. +2 more
openaire +1 more source
Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling
Advanced Engineering Materials, EarlyView.Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer +3 more
wiley +1 more source
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
doaj +1 more source
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
doaj +1 more source
Mid-infrared resonant ablation for selective patterning of thin organic films [PDF]
, 2014 The fast growing market of organic electronics, including organic photovoltaics (OPV), stimulates the development of versatile technologies for structuring thin-film materials.
Duterte, Charles +8 more
core +2 more sources
Advanced Engineering Materials, EarlyView.The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
Green Picosecond Laser Machining of Thermoset and Thermoplastic Carbon Fiber Reinforced Polymers
Micromachines, 2021 There has been an increase in demand for the development of lightweight and high-strength materials for applications in the transportation industry. Carbon fiber reinforced polymer (CFRP) is known as one of the most promising materials owing to its high ...
Insung Choi +3 more
doaj +1 more source
Analysis And Performance Of A Picosecond Dye Laser Amplifier Chain [PDF]
, 1982 Design considerations are discussed for a simple, easy to use and relatively efficient high gain dye laser amplifier chain for CW mode-locked dye lasers. The amplifier boosts the output of a synchronously mode-locked dye laser to obtain ≈005 mj, ≤ 1 psec
Chiu, L. C., Koch, T. L., Yariv, A.
core +1 more source
Picosecond Laser Ablation of Dentine in Endodontics
Lasers in Medical Science, 1999 . The interaction of picosecond laser radiation with human dental tissue was investigated in this study, in order to determine the ablation rates and the surface characteristics of the dentine by using scanning electron microscopy (SEM). Dentine ablation was performed by using tooth sections of different thicknesses (0.5–2.0 mm).
Serafetinides, AA +3 more
openaire +2 more sources