Abstract
Polarization degree of helium-like Cl-Hea line (1s 2 1 s 0 - ls2p 1 P 1 ) from a chrolinated triple-layer target was measured using a 130 fs laser pulse at 10 17 W/cm 2 . The polarization degree was given as a function of overcoat thickness. It was found that the emission from a layer closer to the target surface is polarized parallel to the surface direction whereas emission from a deeper region in perpendicular to the surface. The experimental result was analyzed using a two dimensional (2D) Maxwellian distribution function for hot electrons. Beam-like distribution was found in the depth of plasma.
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