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The effect of phase front deformation on the growth of the filamentation instability in laser-plasma interactions

Abstract:

Laser pulses of 0.9 kJ/1 ns/1053 nm were focused onto low-Z plastic targets in both spherical and planar geometry. The uniformity of the resulting plasma production was studied using x-ray pinhole imaging. Evidence is provided suggesting that thermal filamentation starts to occur for irradiances on the target of Iλ2 1014 W cm-2 μm 2, even on deployment of phase plates to improve the focal spot spatial uniformity. The experiments are supported by both analytical modelling and two-dimensional p...

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Publication status:
Published

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Authors


Bingham, R More by this author
Lancaster, KL More by this author
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Journal:
NEW JOURNAL OF PHYSICS
Volume:
15
Issue:
1
Pages:
015027-015027
Publication date:
2013-01-31
DOI:
EISSN:
1367-2630
ISSN:
1367-2630
URN:
uuid:b322e1f2-704d-4388-be05-045eb97a19b7
Source identifiers:
385005
Local pid:
pubs:385005
Language:
English

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