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Characteristics of argon plasma waveguide produced by alumina capillary discharge for short wavelength laser application
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10.1063/1.4712038
/content/aip/journal/jap/111/9/10.1063/1.4712038
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/9/10.1063/1.4712038
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of the experimental setup. The inset is a 1-cm long alumina (Al2O3) tube.

Image of FIG. 2.
FIG. 2.

Photograph (a) and the scheme (b) of the capillary with the electrode.

Image of FIG. 3.
FIG. 3.

Temporal waveforms of the discharge voltage (a) and the current (b), respectively.

Image of FIG. 4.
FIG. 4.

(a) The radial profile of the electron density, measured at the capillary exit (blue) and obtained in MHD simulation (red). (b) Time-integrated spectrum of the visible emission from the plasma jet.

Image of FIG. 5.
FIG. 5.

The distribution in plane of electron density (a) in units of 1018 cm−3, electron temperature (b) in units of eV, and ion charge state (c), respectively. The scales show values of electron density, electron temperature, and ion charge state, respectively.

Image of FIG. 6.
FIG. 6.

Simulated temporal evolution of the axial electron density , ion and electron temperatures and , mean degree of ionization of argon plasma , and the full electric current in the discharge.

Image of FIG. 7.
FIG. 7.

Simulated radial profiles of electron density , ion and electron temperatures and , and mean degree of ionization of argon plasma at ns.

Image of FIG. 8.
FIG. 8.

Photographs of the transmitted laser profile at the capillary exit for different moments of time and the fitted discharge current (solid line). The fitted current profile was used in the MHD simulation.

Image of FIG. 9.
FIG. 9.

Experimental (blue) and obtained in PIC simulation (red) time-integrated spectra of the laser pulse at the entrance (a) and the exit (b) of the capillary with the preformed plasma at the delay time of 150 ns.

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/content/aip/journal/jap/111/9/10.1063/1.4712038
2012-05-07
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Characteristics of argon plasma waveguide produced by alumina capillary discharge for short wavelength laser application
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/9/10.1063/1.4712038
10.1063/1.4712038
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