Raman scattering of a laser beam carrying an orbital angular momentum

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00561514" target="_blank" >RIV/68378271:_____/22:00561514 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/5.0086700" target="_blank" >https://doi.org/10.1063/5.0086700</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0086700" target="_blank" >10.1063/5.0086700</a>

Result language
angličtina
Original language name
Raman scattering of a laser beam carrying an orbital angular momentum
Original language description
We study theoretically and numerically the Raman backscattering process of a laser beam carrying an orbital angular momentum. By expanding the electromagnetic and electrostatic waves over the Laguerre–Gauss modes, we retrieve the strong dependence of the growth rate on the radial overlap of these functions. The presence of an orbital angular momentum in the laser beam results in a mitigation of the Raman backscattering by 30%. This is confirmed with three-dimensional particle-in-cell simulations. Both the theoretical description and numerical analysis show that the scattered electromagnetic wave is generated with an azimuthal order equal to the laser beam’s.
Czech name
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Czech description
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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
10305 - Fluids and plasma physics (including surface physics)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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