TITLE

Two color multiphoton ionization and harmonic generation in gases

AUTHOR(S)
Giammanco, Francesco
PUB. DATE
July 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 525 Issue 1, p559
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We analyze the correlation between harmonic generation and multiphoton ionization produced by the mixing of the fundamental and second harmonic of a picosecond Nd-YAG laser in Ar and N[sub 2]. We show that the ion and harmonic signals exhibit the same behavior versus the relative delay between both fields. It seems to suggest, at least in our conditions, a positive influence of ionization on the harmonic conversion efficiency. The solution of the propagation equation, which includes electron-ion scattering as the elementary process of harmonic generation, gives a good description of the experimental results. © 2000 American Institute of Physics.
ACCESSION #
6028328

 

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