Impact of electron trapping on stimulated Raman scattering under incoherent broadband laser light in homogeneous plasma
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F24%3A00379012" target="_blank" >RIV/68407700:21340/24:00379012 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevE.110.065207" target="_blank" >https://doi.org/10.1103/PhysRevE.110.065207</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevE.110.065207" target="_blank" >10.1103/PhysRevE.110.065207</a>
Alternative languages
Result language
angličtina
Original language name
Impact of electron trapping on stimulated Raman scattering under incoherent broadband laser light in homogeneous plasma
Original language description
Backward stimulated Raman scattering is a three-wave coupling instability requiring the matching of an incoming pump light wave to a scattered light wave and an electron plasma wave. It can be harmful to laser-driven inertial confinement fusion because of the reflection of a part of the incident laser flux and the generation of suprathermal electrons that preheat the fuel. It is believed that by increasing the laser bandwidth, one can suppress the excitation of Raman scattering and mitigate its detrimental effects. It is demonstrated in this paper that using a broad bandwidth laser has little effect on stimulated Raman scattering in the kinetic inflation regime where Landau damping dominates, as the additional bandwidth allows the electron plasma wave to match a wider range of laser frequencies. As a result, plasma wave saturation and Raman backscattering levels remain high even when the laser bandwidth is much larger than the effective instability growth rate.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICAL REVIEW E
ISSN
2470-0045
e-ISSN
2470-0053
Volume of the periodical
110
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
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UT code for WoS article
001391332700006
EID of the result in the Scopus database
2-s2.0-85213043805