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Measurements of intense femtosecond laser pulse propagation in aira)
a)Paper FI2 2, Bull. Am. Phys. Soc. 49, 136 (2004).
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10.1063/1.1871197
/content/aip/journal/pop/12/5/10.1063/1.1871197
http://aip.metastore.ingenta.com/content/aip/journal/pop/12/5/10.1063/1.1871197
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Experimental setup for filament characterization. The windowless helium cell was moved in steps of 7.5 cm along the filament propagation from 3 to 12 m. The reflectors in the cell are for laser energy attenuation and wavelength selections.

Image of FIG. 2.
FIG. 2.

(a) Two-dimensional image of the USL filament using the windowless helium cell at 10 m for a 50 fs pulse and (b) horizontal line-out of the hot filament shown in (a) showing a peak energy fluence of and a FWHM diameter of 130 μm.

Image of FIG. 3.
FIG. 3.

Longitudinal variation of the FWHM diameter of a 450 fs USL filament showed a slight increase from 8 to 12 m.

Image of FIG. 4.
FIG. 4.

Longitudinal variation of the energy fluence of a 450 fs USL filament showed a slight decrease from 8 to 12 m.

Image of FIG. 5.
FIG. 5.

Longitudinal variation of the integrated energy ( of peak fluence) of a 450 fs USL filament appears to hold relatively constant from 8 to 12 m.

Image of FIG. 6.
FIG. 6.

Measured current (voltage across a 50 Ω termination resistor) conducting through a 480 fs USL filament that passed through a high voltage globe as a function of the position of the current collector from the globe. Open triangle indicates the theoretical prediction of a dependence.

Image of FIG. 7.
FIG. 7.

An extended electrical discharge over 1.7 m induced by a 500 fs USL pulse between two oppositely charged Van de Graaff generators.

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/content/aip/journal/pop/12/5/10.1063/1.1871197
2005-04-07
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Measurements of intense femtosecond laser pulse propagation in aira)
http://aip.metastore.ingenta.com/content/aip/journal/pop/12/5/10.1063/1.1871197
10.1063/1.1871197
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