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Smoothing and stochastic pulsation at high power laser-plasma interaction

Published online by Cambridge University Press:  21 September 2006

HEINRICH HORA
HEINRICH HORA
Affiliation:
Department of Theoretical Physics, University of New South Wales, Sydney, Australia
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Abstract

Stochastic pulsation of laser-plasma interaction in the range of a few to dozens of picoseconds, due to standing wave produced density ripples, needs more attention than in the past, in view of the recent developments. This is important if nanosecond laser pulses produce a pre-compression that is a thousand times the solid state density of DT for fast ignition as well as for treatment of ps laser interaction. The following is an updated summary of these properties where the laser beam smoothing is essential. The use of smoothing is not only an empirical game with experiments for improving the interaction, but it is necessary to be aware of the mechanisms involved for understanding how the pulsation is overcome, and conclusions can be derived systematically for further improvements and control of the phenomena.

Keywords

Density ripplingDirect drive laser fusionLaser beam smoothingLaser-plasma interactionStochastic pulsationSuppression of instabilities
Type
Research Article
Information
Laser and Particle Beams , Volume 24 , Issue 3 , September 2006 , pp. 455 - 463
Copyright
© 2006 Cambridge University Press

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References

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