Filamented plasmas in laser ablation of solids

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F09%3A00334667" target="_blank" >RIV/68378271:_____/09:00334667 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Filamented plasmas in laser ablation of solids

Original language description

We report results from laser-solid experiments at PALS using an x-ray laser probe with a pulse length of 0.1 ns and a wavelength of 21.2 nm. A laser with a pulse length of 0.3 ns, a peak intensity of up to 5 x 10(13) W cm(-2) and a wavelength of 1.3 mu mwas focused to a 0.15 mm wide line on 3 mm long zinc and 1 mm long iron targets and the probe was passed along the length of the plasma formed. The results show plasma 'hairs', or filaments, appearing only below the critical density, 0.1 ns before the peak of the laser pulse. The plasma around the critical density was clearly imaged and remained uniform. Magneto-hydrodynamic modelling indicates that this is caused by a magnetic field that diffuses from the critical surface, where it is generated, leading to a magnetic pressure comparable to the plasma pressure below the critical density.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Plasma Physics and Controlled Fusion

ISSN

0741-3335

e-ISSN

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Volume of the periodical

51

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

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UT code for WoS article

000263382300014

EID of the result in the Scopus database

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