#

The planar boundary at z equals 0 divides the two mediums in two halves. Medium 1 has parameters, epsilon sub 1, micro sub 1, and sigma sub 1. Medium 2 has permittivity, epsilon sub 2, micro sub 2, and sigma sub 2. In medium 1, electric field E to the power of i and H to the power of i moves along the direction vector k sub i toward the medium 2 in right direction. Electric field E to the power of r and H to the power of r moves along the direction vector k sub r in the left direction. In medium 2, electric field E to the power t and H to the power of t moves along the direction vector k sub t in right direction.