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THz emission control by tuning density profiles of neutral gas targets during intense laser-gas interaction
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10.1063/1.4765365
/content/aip/journal/apl/101/18/10.1063/1.4765365
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/18/10.1063/1.4765365
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic view of THz emission from laser interaction with gas targets with linear ramps. Here is the gradient length in the two ramp regions and is the length of the uniform region.

Image of FIG. 2.
FIG. 2.

Ionization currents (a) and spatial-temporal distribution of the electric fields (b) from two-color laser pulses interaction with nonuniform gas target. (c),(d) Ionization currents and electric field in the few-cycle laser gas interaction case. The black dashed lines show the boundaries between the ramp and uniform regions, the red lines show the boundaries between gas and vacuum.

Image of FIG. 3.
FIG. 3.

(a) Amplitude of the emitted THz electric field at the first radiation peak when different density gradient lengths () are used. (b) Radiation spectra of the forward emission when gas targets with different are used. (c) Evolution of THz peak frequency with gas density gradient . Here .

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/content/aip/journal/apl/101/18/10.1063/1.4765365
2012-11-01
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: THz emission control by tuning density profiles of neutral gas targets during intense laser-gas interaction
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/18/10.1063/1.4765365
10.1063/1.4765365
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