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The characteristics of hot electrons produced by p-polarized femtosecond laser-solid interactions are studied. The experimental results show that the outgoing electrons are mainly emitted in three directions: along the target surface, the normal direction and the laser backward direction. The electrons flowing along the target surface are due to the confinement of the electrostatic field and the surface magnetic field, while the electrons in the normal direction due to the resonant absorption.
The characteristics of hot electrons produced by p-polarized femtosecond laser-solid interactions are studied. The experimental results show the outgoing electrons are mainly emitted in three directions: the target surface, the normal direction and the laser backward direction. along the target surface are due to the confinement of the electrostatic field and the surface magnetic field, while the electrons in the normal direction due to the resonant absorption.