The process of second harmonic generation (SHG) in undercritical plasmas is studied. It is shown that filamentation and self-focusing of the laser beam in the plasma can break the plasma density symmetry and lead to SHG by free electrons. In turn, second harmonic emission may be used to investigate the plasma parameters and to diagnose the process of laser beam filamentation itself.

2ND-HARMONIC LIGHT GENERATION IN THE INTERACTION OF LASER-BEAMS WITH UNDERCRITICAL PLASMAS

GIULIETTI, DANILO;
1994

Abstract

The process of second harmonic generation (SHG) in undercritical plasmas is studied. It is shown that filamentation and self-focusing of the laser beam in the plasma can break the plasma density symmetry and lead to SHG by free electrons. In turn, second harmonic emission may be used to investigate the plasma parameters and to diagnose the process of laser beam filamentation itself.
Batani, D; Giulietti, A; Biancalana, V; Bianconi, F; Borghesi, M; Chessa, P; Giulietti, Danilo; Gizzi, L; Deha, I; Schifano, E.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/23064
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