Results 31 to 40 of about 30,090 (307)

Broadband synchronization of ultrafast pulse generation with double-walled carbon nanotubes

open access: yesNanophotonics, 2023
Double-walled carbon nanotubes have shown competitive properties in broadband optical pulse generation owning to the intrinsic electronic properties.
Zheng Jiancheng   +9 more
doaj   +1 more source

Generation and characterisation of 40 GHz picosecond optical pulses generated using an EAM [PDF]

open access: yes, 2006
The authors describe the generation of short (< 4 ps) optical pulses at a repetition rate of 40 GHz using an InP electro-absorption modulator. The technique of frequency resolved optical gating (FROG) is subsequently used to accurately characterize the ...
P. M. An   +7 more
core   +1 more source

Chirped pulse Raman amplification in plasma: high gain measurements [PDF]

open access: yes, 2009
High power short pulse lasers are usually based on chirped pulse amplification (CPA), where a frequency chirped and temporarily stretched ``seed'' pulse is amplified by a broad-bandwidth solid state medium, which is usually pumped by a monochromatic ...
G. Raj   +19 more
core   +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

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

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

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  

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

Double ionization by strong elliptically polarized laser pulses [PDF]

open access: yesLaser Physics, 2009
3 pages, 4 figures, accepted in Professor N.B.
Wang, Xu, Eberly, J. H.
openaire   +2 more sources

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  

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