Abstract
Study on x-ray polarization spectroscopy was performed for intense-laser-produced plasma under laser-oblique incidence. The laser pulse was focused onto a polyvinylchloride target at angles of 67 degrees and 7 degrees to the target normal at average intensities of 1017-18 W/cm2. There were differences in the spectra for shifted Kα lines of C1 atoms between the oblique and nearly normal incidence, indicating the low laser-energy absorption in the oblique incidence. A difference in polarization degrees of C1 Heα lines was also observed, and this means the polarization of incident laser pulse affect velocity distribution functions of fast electrons in intense-laser-produced plasma.
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