Anisotropic heating and magnetic field generation due to Raman scattering in laser-plasma interactions
We identify a mechanism for magnetic field generation in the interaction of intense electromagnetic waves and underdense plasmas. We show that Raman scattered plasma waves trap and heat the electrons preferentially in their propagation direction, resulting in a temperature anisotropy. In the trail o...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-04-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.023080 |
| _version_ | 1797211484710764544 |
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| author | T. Silva K. Schoeffler J. Vieira M. Hoshino R. A. Fonseca L. O. Silva |
| author_facet | T. Silva K. Schoeffler J. Vieira M. Hoshino R. A. Fonseca L. O. Silva |
| author_sort | T. Silva |
| collection | DOAJ |
| description | We identify a mechanism for magnetic field generation in the interaction of intense electromagnetic waves and underdense plasmas. We show that Raman scattered plasma waves trap and heat the electrons preferentially in their propagation direction, resulting in a temperature anisotropy. In the trail of laser pulse, we observe magnetic field growth that matches the Weibel mechanism due to the temperature anisotropy. We discuss the role of the initial electron temperature in our results. The predictions are confirmed with multidimensional particle-in-cell simulations. We show how this configuration is an experimental platform to study the long-time evolution of the Weibel instability. |
| first_indexed | 2024-04-24T10:27:14Z |
| format | Article |
| id | doaj.art-94b2045abfd3498eaa56632a3e5ac7f6 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:27:14Z |
| publishDate | 2020-04-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-94b2045abfd3498eaa56632a3e5ac7f62024-04-12T16:53:04ZengAmerican Physical SocietyPhysical Review Research2643-15642020-04-012202308010.1103/PhysRevResearch.2.023080Anisotropic heating and magnetic field generation due to Raman scattering in laser-plasma interactionsT. SilvaK. SchoefflerJ. VieiraM. HoshinoR. A. FonsecaL. O. SilvaWe identify a mechanism for magnetic field generation in the interaction of intense electromagnetic waves and underdense plasmas. We show that Raman scattered plasma waves trap and heat the electrons preferentially in their propagation direction, resulting in a temperature anisotropy. In the trail of laser pulse, we observe magnetic field growth that matches the Weibel mechanism due to the temperature anisotropy. We discuss the role of the initial electron temperature in our results. The predictions are confirmed with multidimensional particle-in-cell simulations. We show how this configuration is an experimental platform to study the long-time evolution of the Weibel instability.http://doi.org/10.1103/PhysRevResearch.2.023080 |
| spellingShingle | T. Silva K. Schoeffler J. Vieira M. Hoshino R. A. Fonseca L. O. Silva Anisotropic heating and magnetic field generation due to Raman scattering in laser-plasma interactions Physical Review Research |
| title | Anisotropic heating and magnetic field generation due to Raman scattering in laser-plasma interactions |
| title_full | Anisotropic heating and magnetic field generation due to Raman scattering in laser-plasma interactions |
| title_fullStr | Anisotropic heating and magnetic field generation due to Raman scattering in laser-plasma interactions |
| title_full_unstemmed | Anisotropic heating and magnetic field generation due to Raman scattering in laser-plasma interactions |
| title_short | Anisotropic heating and magnetic field generation due to Raman scattering in laser-plasma interactions |
| title_sort | anisotropic heating and magnetic field generation due to raman scattering in laser plasma interactions |
| url | http://doi.org/10.1103/PhysRevResearch.2.023080 |
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