Plasma waves as a research area investigates collective oscillations of charged particles and electromagnetic fields in ionized media, spanning linear and nonlinear phenomena in laboratory, space, and astrophysical plasmas. It encompasses electrostatic and electromagnetic modes (e.g., Langmuir, ion-acoustic, Alfvén, whistler, and magnetosonic waves), their dispersion properties, instabilities, mode conversion, and wave–particle interactions such as Landau and cyclotron damping. Research focuses on theoretical modeling, kinetic and fluid descriptions, numerical simulations, and experiments, with applications to controlled fusion, space weather, radiation belt dynamics, and plasma-based acceleration and diagnostic techniques.
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