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Trajectories for finite temperature electrons passing through the skin layer of a (a) high , (b) medium , and (c) low frequency wave. Fields are prescribed by and , where and are parallel to the electric field and momentum of the applied em wave, respectively.
(a) Assuming an electron travels on a circular path with Larmor radius tangent to the plasma surface, the distance traveled inside the skin layer of width is . (b) Schematic log-log plot showing regime boundaries and the skin depth vs wave amplitude and frequency . Gradients grow darker toward longer skin depth.
Plane slab system with linearly polarized wave traveling in -direction from source antenna on left through plasma in center, where it is attenuated with skin depth . Magnetic and electric fields are in the - and -directions, respectively.
Skin depth vs frequency for wave amplitude just inside the surface of the plasma. High frequency data is compared to the LSE [Eq. (2)]. Midfrequency data is fit to the ASE [Eq. (5)] with multiplicative factor . Low frequency data is fit to the NSE [Eq. (9)] with multiplicative factor .
Skin depth vs amplitude for wave frequencies and . High frequency data is compared to the LSE [Eq. (2)] and low frequency data is fit to the NSE [Eq. (9)] with multiplicative factor .
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