J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 401-404
Hot electron generation by laser-cone interactionT. Nakamura1, H. Sakagami2, T. Johzaki1, H. Nagatomo1 and K. Mima1
1 Institute of Laser Engineering, 2-6 Yamadaoka, Osaka 585-0871, Japan
2 National Institute for Fusion Sciences, 322-6 Oroshi-cyo, Gifu 509-5292, Japan
The hot electron generation by irradiation of intense short laser pulses onto cone targets is studied by using 2D PIC simulation. It is shown that the high energy electrons from the cone target are characterized with three effective temprature, while two-temperature for plane target. The electrons composing most energetic component are generated at the cone tip where laser field is intensified by cone-guiding, and electrons for middle component are generated at cone wing which is not observed for plane target. The acceleration processes at cone wing, cone tip, and rear surface are explained.
© EDP Sciences 2006