Effect of retardation on the frequency and linewidth of plasma resonances in a two-dimensional disk of electron gas

@article{Zagorodnev2020EffectOR,
  title={Effect of retardation on the frequency and linewidth of plasma resonances in a two-dimensional disk of electron gas},
  author={I. V. Zagorodnev and D. A. Rodionov and A. A. Zabolotnykh},
  journal={arXiv: Mesoscale and Nanoscale Physics},
  year={2020}
}
We theoretically analyze dominant plasma modes in a two-dimensional disk of electron gas by calculating the absorption of an incident electromagnetic wave. The problem is solved in a self-consistent approximation, taking into account electromagnetic retardation effects. We use the Drude model to describe the conductivity of the system. The absorption spectrum exhibits a series of peaks corresponding to the excitation of plasma waves. The position and linewidth of the peaks designating… 

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