LF-WAVE PENETRATION THROUGH A SHARP BOUNDARY OF A MAGNITOACTIVE PLASMA

A consistent approximate approach based upon using a large value of th e refractive index of a plasma for waves of low-frequency range is use d to solve the classical problem of electromagnetic wave penetration t hrough the sharp magnitoactive-plasma-vacuum boundary. Simple formulas for the transmission and reflection coefficients are obtained under w ave incidence from both the vacuum and plasma sides. A graphic model o f the phenomenon is given. In particular, conditions for efficient wav e penetration are indicated, and the effect of collisions is examined.