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Plasma Wave Reflection from Potential Barrier Having Size Comparable with Wavelength

  • PLASMA PHYSICS
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Russian Physics Journal Aims and scope

The paper studies the plasma wave reflection from the potential barrier having size comparable with a wavelength. Since the potential barrier is much larger than the potential wave, plasma oscillations cannot exist nearby this barrier. Only density modulation is preserved in electrons with different energies moving in the potential field. The reflected wave results from the interference of modulated electron beams reflected from the potential barrier. The wave reflection is analyzed for two cases of the linear and parabolic barriers. When the wave reflection occurs during the time shorter than the relaxation time, the wave reflection coefficient is equal to one regardless of the barrier profile. The phase delay is detected for the reflected wave relative to the incident wave.

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Authors and Affiliations

  1. Southern Federal University, Rostov-on-Don, Russia

    A. I. Matveev

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  1. A. I. Matveev
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Correspondence to A. I. Matveev.

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 9, pp. 131–140, September, 2022.

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Matveev, A.I. Plasma Wave Reflection from Potential Barrier Having Size Comparable with Wavelength. Russ Phys J 65, 1564–1574 (2023). https://doi.org/10.1007/s11182-023-02802-w

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  • DOI: https://doi.org/10.1007/s11182-023-02802-w

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