Experimental observation of parametric instabilities at laser intensities relevant for shock ignition

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00479486" target="_blank" >RIV/68378271:_____/17:00479486 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1209/0295-5075/117/35001" target="_blank" >http://dx.doi.org/10.1209/0295-5075/117/35001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1209/0295-5075/117/35001" target="_blank" >10.1209/0295-5075/117/35001</a>

Result language

angličtina

Original language name

Experimental observation of parametric instabilities at laser intensities relevant for shock ignition

Original language description

We report measurements of parametric instabilities and hot electron generation in a laser intensity regime up to 6 × 1015 W/cm2, typical of the shock ignition approach to inertial fusion. Experiments performed at the PALS laboratory in Prague show that the incident laser energy losses are dominated by Stimulated Brillouin Scattering (SBS) rather than by Stimulated Raman Scattering (SRS) or Two-Plasmon Decay (TPD). Results are compared to hydrodynamics simulations using a code that includes self-consistent calculations of non-linear laser plasma interactions and accounts for the laser intensity statistics contained in the beam speckles. Good agreement is found for the backscattered SRS light, and for temperature and flux of hot electrons. The effect of high-intensity speckles on backscattered SRS is also underlined numerically and experimentally.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Europhysics Letters

ISSN

0295-5075

e-ISSN

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Volume of the periodical

117

Issue of the periodical within the volume

3

Country of publishing house

FR - FRANCE

Number of pages

6

Pages from-to

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UT code for WoS article

000401164200001

EID of the result in the Scopus database

2-s2.0-85016766474