Results 31 to 40 of about 2,654,873 (296)

Environmentally Stable 1.56-μm Femtosecond Laser System With Discontinuous Selectable Repetition Rate

open access: yesIEEE Photonics Journal, 2020
We demonstrate here an environmentally stable and compact Er-doped fiber laser system capable of delivering sub-100-fs pulse duration with discontinuous selectable repetition rate from 10 to 70 MHz.
Hanmei Fu   +4 more
doaj   +1 more source

Preparation and characterization of colloidal CdTe nanoparticles by laser ablation in liquids

open access: yesIraqi Journal of Physics, 2019
Nanoparticles generation by laser ablation of a solid target in a liquid environment is an easy method. Cadmium Telluride (CdTe) colloidal nanoparticles have been synthesized by laser ablation Nd:YAG with wavelengths of 1064nm and double frequency at ...
Amenah Ali Salman
doaj   +1 more source

Nonsequential Double Ionization of Atoms in Strong Laser Pulses [PDF]

open access: yesActa Physica Polonica A, 2007
It is now possible to produce laser pulses with reproducible pulse shape and controlled carrier envelope phase. It is discussed how that can be explored in double ionisation studies. To this end we solve numerically the Schrodinger equation for a limited dimensionality model which nevertheless treats electron repulsion qualitatively correctly and ...
Prauzner-Bechcicki, Jakub   +3 more
openaire   +1 more source

Power controllable gain switched fiber laser at ~ 3 μm and ~ 2.1 μm

open access: yesScientific Reports, 2021
Based on a hybrid pumping method consisting of a 1150 nm continuous-wave pump source and a 1950 nm pulsed pump source, we demonstrate a power controllable gain-switched fiber laser in dual wavebands at ~ 3 μm and ~ 2.1 μm.
Yiwen Shi   +5 more
doaj   +1 more source

Atoms in intense ultrashort laser pulses and the absolute phase [PDF]

open access: yes, 2004
Diese Arbeit beschäftigt sich mit der experimentellen Analyse atomarer Prozesse in intensiven ultrakurzen Laserpulsen. Der Schwerpunkt liegt hierbei bei den Zwillingseffekten der Erzeugung hoher Harmonischer (``high-order harmonic generation'', HHG) und ...
Lindner, Fabrizio
core   +1 more source

SILICON SURFACE MICROSTRUCTURING BY SINGLE-EXPOSURE FEMTOSECOND DOUBLE LASER PULSE [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. The paper evaluates the possibility of periodic microstructures formation on the silicon surface by single-exposure double femtosecond laser pulse. Method.
E. V. Kuzmin   +3 more
doaj   +1 more source

SPECTRAL CONTROL OF THE FORMATION PROCESSES OF ALUMINUM NITRIDE CLUSTERS IN THE PLASMA WHEN ALUMINUM IS SUBJECTED TO SERIES OF DOUBLE LASER PULSES [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2011
The effect of an additional laser pulse on the formation of the specific component and charge composition of the surface laser plasma was studied by the method of laser spark spectrometry (LSS).
H. N. Trinh, A.R. Fadeian, A.P. Zajogin
doaj  

TiOxNy Thin Film Sputtered on a Fiber Ball Lens as Saturable Absorber for Passive Q-Switched Generation of a Single-Tunable/Dual-Wavelength Er-Yb Double Clad Fiber Laser

open access: yesNanomaterials, 2020
The use of titanium oxynitride (TiOxNy) thin films as a saturable absorber (SA) element for generation of passive Q-switched (PQS) laser pulses, from a linear cavity Er-Yb double-clad fiber (EYDCF) laser, is demonstrated.
Ricardo I. Álvarez-Tamayo   +4 more
doaj   +1 more source

THE FORMATION OF TiO NANOCLUSTERS IN THE SURFACE LASER PLASMA WHEN TITANIUM AND BARIUM TITANATE ARE SUBJECTED TO THE EFFECT OF DOUBLE LASER PULSES [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2012
The effect of an additional laser pulse on the formation of the composition and charge state of the surface laser plasma was studied by the laser spark spectrometry (LSS) method.
Fadaeian Ahmad Reza   +2 more
doaj  

Simulation of laser ablation in aluminum: the effectivity of double pulses [PDF]

open access: yesApplied Physics A, 2014
Lasers are becoming a more and more important tool in cutting and shaping materials. Improving precision and effectivity is an ongoing demand in science and industry. One possibility are double pulses. Here we study laser ablation of aluminum by the two-temperature model.
Roth, Johannes   +3 more
openaire   +2 more sources

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