PLASMA-DENSITY DETERMINATION BY TRANSMISSION OF LASER-GENERATED SURFACE HARMONICS

Authors
GIBBON P ALTENBERND D TEUBNER U FORSTER E AUDEBERT P GEINDRE JP GAUTHIER JC MYSYROWICZ A
Citation
P. Gibbon et al., PLASMA-DENSITY DETERMINATION BY TRANSMISSION OF LASER-GENERATED SURFACE HARMONICS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 55(6), 1997, pp. 6352-6355
Citations number
21
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
55
Issue
6
Year of publication
1997
Part
A
Pages
6352 - 6355
Database
ISI
SICI code
1063-651X(1997)55:6<6352:PDBTOL>2.0.ZU;2-S
Abstract
A diagnostic is proposed for determining the density of laser-generate d plasmas. The scheme exploits surface harmonics generated by short, i ntense laser pulses reflected from an overdense plasma layer. At suffi ciently high intensities (I lambda(2)>10(18) W cm(-2)), the reflected spectrum contains harmonics well above the plasma frequency, correspon ding to the maximum plasma density. The transmitted spectrum, on the o ther hand. exhibits a low-frequency cutoff for omega<omega(p), offerin g a simple means of deducing the plasma density.