scholarly journals Self-waveguiding of relativistic laser pulses in neutral gas channels

2020 ◽  
Vol 2 (4) ◽  
Author(s):  
L. Feder ◽  
B. Miao ◽  
J. E. Shrock ◽  
A. Goffin ◽  
H. M. Milchberg
Keyword(s):  
Laser Pulses ◽  
Neutral Gas

scholarly journals Concept of generation of extremely compressed high-energy electron bunches in several interfering intense laser pulses with tilted amplitude fronts

2012 ◽  
Vol 31 (1) ◽  
pp. 23-28 ◽  
Author(s):  
V.V. Korobkin ◽  
M.Yu. Romanovskiy ◽  
V.A. Trofimov ◽  
O.B. Shiryaev
Keyword(s):  
Laser Pulses ◽  
High Energy ◽  
Intense Laser ◽  
High Energy Electron ◽  
Speed Of Light ◽  
Electron Bunches ◽  
Newton Equation ◽  
High Energies ◽  
Neutral Gas ◽  
Intense Laser Pulses

AbstractA new concept of generating tight bunches of electrons accelerated to high energies is proposed. The electrons are born via ionization of a low-density neutral gas by laser radiation, and the concept is based on the electrons acceleration in traps arising within the pattern of interference of several relativistically intense laser pulses with amplitude fronts tilted relative to their phase fronts. The traps move with the speed of light and (1) collect electrons; (2) compress them to extremely high density in all dimensions, forming electron bunches; and (3) accelerate the resulting bunches to energies of at least several GeV per electron. The simulations of bunch formation employ the Newton equation with the corresponding Lorentz force.

Characterisation of supersonic gas jets for different nozzle geometries for laser-plasma acceleration experiments at SPARC_LAB

2022 ◽  
Vol 17 (01) ◽  
pp. C01049
Author(s):  
G. Costa ◽  
M.P. Anania ◽  
A. Biagioni ◽  
F.G. Bisesto ◽  
M. Del Franco ◽  
...  
Keyword(s):  
High Power ◽  
Plasma Channel ◽  
Laser Pulses ◽  
Industrial Applications ◽  
Point Of View ◽  
Theoretical Point ◽  
High Power Laser ◽  
Power Laser ◽  
Neutral Gas ◽  
Nozzle Geometries

Abstract Plasma-based technology promises a tremendous reduction in size of accelerators used for research, medical, and industrial applications, making it possible to develop tabletop machines accessible for a broader scientific community. The use of high-power laser pulses on gaseous targets is a promising method for the generation of accelerated electron beams at energies on the GeV scale, in extremely small sizes, typically millimetres. The gaseous target in question can be a collimated supersonic gasjet from a nozzle. In this work, a technique for optimising the so generated plasma channel is presented. In detail, a study on the influence of the nozzle throat shape in relation to the uniformity and density of the generated plasma profile is reported. These considerations are discussed first of all from a theoretical point of view, by means of a stationary one-dimensional mathematical model of the neutral gas, thus exploiting the possibility of comparing the properties of the output flow for different nozzle geometries. This is combined with an experimental approach using interferometric longitudinal density measurements of the plasma channel. The latter is generated by a high-power laser pulse focused on a helium gasjet, in the SPARC_LAB laboratories.

Formation of ionization fronts by intense short laser pulses propagating in a neutral gas

1998 ◽  
Author(s):  
C. C. Rosa ◽  
L. Oliveira e Silva ◽  
N. Lopes ◽  
J. T. Mendonça
Keyword(s):  
Laser Pulses ◽  
Ionization Fronts ◽  
Neutral Gas ◽  
Short Laser Pulses

Causal heat transport induced by zeptosecond laser pulses

2002 ◽  
Vol 12 (3) ◽  
pp. 201-206 ◽  
Author(s):  
Janina Marciak-Kozłowska ◽  
Mirosław Kozłowski
Keyword(s):  
Heat Transport ◽  
Laser Pulses

Transient collisional excitation X-ray laser generation with picoseconds laser pulses

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-39-Pr2-42 ◽  
Author(s):  
M. Kado ◽  
T. Kawachi ◽  
N. Hasegawa ◽  
M. Tanaka ◽  
K. Sukegawa ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Laser Generation ◽  
Collisional Excitation ◽  
X Ray

Hard X-ray radiation and fast particle generation using multiterawatt laser pulses

1999 ◽  
Vol 169 (1) ◽  
pp. 72 ◽  
Author(s):  
Aleksandr A. Andreev ◽  
V.E. Yashin ◽  
Aleksandr V. Charukhchev
Keyword(s):  
Laser Pulses ◽  
Fast Particle ◽  
X Ray ◽  
Particle Generation
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