Electric-Field Penetration into a Plasma with a Fractionally Accommodating Boundary

Abstract

Landau's field penetration study is extended to a plasma with a boundary that reflects a fraction σ of the incident electrons specularly and the remainder diffusely. Exact solutions for specular and diffuse reflection, and series solutions for fractional accommodation are obtained. At great depths in the plasma the field is found to exhibit negligible σ dependence for ω near ω_p and weak dependence through a factor (1 + σ) at other frequencies.