Escape into vacuum of fast electrons generated by oblique incidence of an ultrashort, high-power laser pulse on a solid target |
| |
Authors: | A A Andreev I A Litvinenko K Yu Platonov |
| |
Institution: | (1) All-Russian Scientific Center “S. I. Vavilov State Optics Institute”, 199034 St. Petersburg, Russia;(2) Russian Federal Nuclear Center, All-Russian Scientific Research Institute of Technical Physics, 199034 St. Petersburg, Russia |
| |
Abstract: | The possibility that fast electrons can escape in a direction close to the trajectory of a reflected ultrashort laser pulse
at extremely high laser radiation fluxes is examined analytically and numerically. Analytic estimates are made of the feasibility
of forming electron bursts in the plasma and of their subsequent motion. The self-consistent, collisionless motion of a plasma
acted on by specified incident and reflected ultrashort laser pulses is modeled in two dimensions by the particle-in-cell
method. It is shown that a substantial number of electrons located in the subcritical region are gathered into bunches by
the resultant forces and escape to the vacuum in a direction different from the normal to the target surface within a narrow
range of solid angles. This demonstrates the feasibility of laser acceleration of an electron burst during reflection of an
ultrashort laser pulse from a solid target.
Zh. éksp. Teor. Fiz. 116, 1184–1197 (October 1999) |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|