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Updated: Jul 18, 2026

Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
Published on: July 2, 2012
Long-scale jet formation with specularly reflected light in ultraintense laser-plasma interactions
1Institute of Laser Engineering, Osaka University, Yamada Oka 2-6 Suita, Yamada Oka, Osaka 565-0871, Japan.
Abstract:
Long-scale jetlike x-ray emission was observed in a 100-TW laser-plasma interaction. The jet was well collimated with a divergence of 30-40 mrad and continued from the target surface into underdense regions for a distance over 4 mm in the specular direction of the laser light. A two-dimensional particle-in-cell simulation shows an electron acceleration with the specularly reflected laser light and collimation of the electron stream by a self-generated magnetic field, resulting in the electron jet to the direction of the specularly reflected light.
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