Pramod, Gopinath; Dr.Nampoori,V P N(Cochin University of Science and Technology, April , 2006)
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Abstract:
Developments in laser technology over the past few years have made it possible to do
experiments with focused intensities of IO"-102' Wcm'z. Short-pulse high-intensity
lasers are able to accelerate protons and heavier ions to multi-MeV energies during
their interaction with solid targets, gas jets and clusters. When such a laser radiation
is focused at the intensity above 10” Wcm'2, local electric field strength will be
almost equivalent to that within an atom. Hence, new nonlinear optical phenomena
will be expected in the field of light matter interaction. Most of the research in the
material interaction using high power lasers, especially related to plasma interaction,
has been directed to the short pulse x-ray generation- Nanosecond laser interactions
with solid targets also generate plasmas which emit radiation mainly in the optical
region, the understanding of which is far from satisfactory. This thesis deals with a
detailed study of some of the dynamical processes in plasmas generated by
nanosecond and femtosecond lasers
Description:
lntemational School of Photonics
Cochin University of Science and Technology