Plasma emission induced by ring-distributed energetic electrons in overdense plasmas
نویسندگان
چکیده
According to the standard scenario of plasma emission, escaping radiations are generated by nonlinear development kinetic bump-on-tail instability driven a single beam energetic electrons interacting with plasmas. Here we conduct fully-kinetic electromagnetic particle-in-cell simulations investigate emission induced ring-distributed overdense Efficient excitations fundamental (F) and harmonic (H) emissions revealed radiation mechanism(s) different from scenario: (1) The primary modes accounting for through electron cyclotron maser (for upper-hybrid (UH) Z modes) thermal anisotropic whistler (W) mode); F is coupling W H UH modes. This presents an alternative mechanism coherent in
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2022
ISSN: ['1070-664X', '1527-2419', '1089-7674']
DOI: https://doi.org/10.1063/5.0108780