On parallel laser beam merger in plasmas
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2023
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866917618784403456 |
|---|---|
| author | Lezhnin, K. V. Qu, Kenan Fisch, N. J. Bulanov, S. V. |
| author_facet | Lezhnin, K. V. Qu, Kenan Fisch, N. J. Bulanov, S. V. |
| contents | Self-focusing instability is a well-known phenomenon of nonlinear optics, which is of great importance in the field of laser-plasma interactions. Self-focusing instability leads to beam focusing and, consequently, breakup into multiple laser filaments. The majority of applications tend to avoid the laser filamentation regime due to its detrimental role on laser spot profile and peak intensity. In our work, using nonlinear Schrödinger equation solver and particle-in-cell simulations, we address the problem of interaction of multiple parallel beams in plasmas. We consider both non-relativistic and moderately relativistic regimes, and demonstrate how the physics of parallel beam interaction transitions from the familiar self- and mutual-focusing instabilities in the non-relativistic regime to moderately relativistic regime, where an analytical description of filament interaction is impenetrable. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_06807 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | On parallel laser beam merger in plasmas Lezhnin, K. V. Qu, Kenan Fisch, N. J. Bulanov, S. V. Plasma Physics Self-focusing instability is a well-known phenomenon of nonlinear optics, which is of great importance in the field of laser-plasma interactions. Self-focusing instability leads to beam focusing and, consequently, breakup into multiple laser filaments. The majority of applications tend to avoid the laser filamentation regime due to its detrimental role on laser spot profile and peak intensity. In our work, using nonlinear Schrödinger equation solver and particle-in-cell simulations, we address the problem of interaction of multiple parallel beams in plasmas. We consider both non-relativistic and moderately relativistic regimes, and demonstrate how the physics of parallel beam interaction transitions from the familiar self- and mutual-focusing instabilities in the non-relativistic regime to moderately relativistic regime, where an analytical description of filament interaction is impenetrable. |
| title | On parallel laser beam merger in plasmas |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2312.06807 |