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Title: Anisotropic heating and magnetic field generation due to Raman scattering in laser-plasma interactions
Authors: Silva, T.
Schoeffler, K. M.
Vieira, J.
Hoshino, M.
Fonseca, R. A.
Silva, L. O.
Issue Date: 2020
Publisher: American Physical Society (APS)
Abstract: 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
Peer reviewed: yes
DOI: 10.1103/PhysRevResearch.2.023080
ISSN: 2643-1564
Appears in Collections:CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica

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