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Laser-driven accelerators by colliding pulses injection: A review of simulation and experimental resultsa)
a)Paper DI2 1, Bull. Am. Phys. Soc. 53, 76 (2008).
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10.1063/1.3079486
/content/aip/journal/pop/16/5/10.1063/1.3079486
http://aip.metastore.ingenta.com/content/aip/journal/pop/16/5/10.1063/1.3079486
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Longitudinal electric field computed at different times in 1D PIC simulation (solid red line) and in fluid simulations (dotted blue line). The transverse electric field is also represented (thin dotted line). Parameters are and , 30 fs duration at FWHM, wavelength , and electron plasma density . The two laser pulses have PPs.

Image of FIG. 2.
FIG. 2.

Injected charge vs (all other parameters are kept the same) in 1D PIC simulations. Solid red line with squares: PPs. Dotted blue line with crosses: crossed polarizations.

Image of FIG. 3.
FIG. 3.

Result of test particle simulations in vacuum. Comparison between the two heating mechanisms: electron spectra after interaction with the two colliding pulses. Solid red line: PPs; dotted blue line: crossed polarizations. Parameters are Gaussian laser pulses at with duration at FWHM with normalized strength for the pump pulse and for the injection pulse.

Image of FIG. 4.
FIG. 4.

Poincaré sections performed for test electrons in vacuum witnessing the collision of two laser pulses. The lasers are assumed to be plane waves and . One can see that chaos appears in the case of crossed polarizations for .

Image of FIG. 5.
FIG. 5.

Longitudinal electric field computed at different times in 1D PIC simulation (solid red line) and in fluid simulations (dotted blue line). Parameters are identical to those of Fig. 1 except that the polarizations are crossed.

Image of FIG. 6.
FIG. 6.

Experimental setup with two laser beams propagating at angle of 176°.

Image of FIG. 7.
FIG. 7.

Raw image from the LANEX screen and its corresponding deconvolved spectra obtained with two parallel polarized laser pulses. Experimental parameters are , , injection position ( corresponds to the center of the gas jet), and density .

Image of FIG. 8.
FIG. 8.

Series of 30 consecutive shots with PP. , , injection position , and density .

Image of FIG. 9.
FIG. 9.

Top: raw images from the LANEX screen. Bottom: corresponding electron spectra obtained with two laser beams in parallel (solid red line) and crossed (blue dotted line) polarizations with , , injection position , and density .

Image of FIG. 10.
FIG. 10.

Injected charge vs (all other parameters are kept the same) in experiments. Solid red line with squares: PPs. Dotted blue line with crosses: crossed polarizations. Each point is an average of three to five shots and the error bars represent the standard deviation.

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2009-03-03
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Laser-driven accelerators by colliding pulses injection: A review of simulation and experimental resultsa)
http://aip.metastore.ingenta.com/content/aip/journal/pop/16/5/10.1063/1.3079486
10.1063/1.3079486
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