Experimental investigations of second-harmonic spectra and Langmuir wave collapse
Journal Article
·
· Physics of Fluids B; (United States)
- Labo Fusion. MDRT/Centre de Developpement des Technologies Avancees, 2, Bd. Frantz Fanon, BP 1017 Alger-Gare, Algiers (Algeria)
Two kinds of experimental results obtained from time-resolved second-harmonic spectra for 1.06 {mu}m laser-produced plasma are presented. At moderate laser intensities ({le}2{times}10{sup 14} W/cm{sup 2}) the results are explained with parametric and electron decay instabilities. Whereas, at high laser intensities ({ge}6{times}10{sup 14} W/cm{sup 2}) the Langmuir strong turbulence is used to explain experimental results. In addition to results obtained by Briand {ital et} {ital al}. (Phys. Fluids B {bold 2}, 160 (1990)), a second sequence of collapses is observed.
- OSTI ID:
- 5362468
- Journal Information:
- Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 3:9; ISSN 0899-8221; ISSN PFBPE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ANNIHILATION
ATOMIC NUMBER
BASIC INTERACTIONS
ELECTROMAGNETIC INTERACTIONS
INSTABILITY
INTERACTIONS
LASER-PRODUCED PLASMA
NONLINEAR OPTICS
OPTICS
PARTICLE INTERACTIONS
PLASMA
PLASMA INSTABILITY
PLASMA WAVES
RED SHIFT
RESOLUTION
TARGETS
TIME RESOLUTION
TIMING PROPERTIES
TURBULENCE
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ANNIHILATION
ATOMIC NUMBER
BASIC INTERACTIONS
ELECTROMAGNETIC INTERACTIONS
INSTABILITY
INTERACTIONS
LASER-PRODUCED PLASMA
NONLINEAR OPTICS
OPTICS
PARTICLE INTERACTIONS
PLASMA
PLASMA INSTABILITY
PLASMA WAVES
RED SHIFT
RESOLUTION
TARGETS
TIME RESOLUTION
TIMING PROPERTIES
TURBULENCE