Abstract

The pseudo-Brewster angle ϕpB, of minimum reflectance pm for the parallel (p) polarization, of an interface between a transparent and an absorbing medium is determined by Im{(u)[1 − (1 + −1)u]2} = 0, where is the complex ratio of dielectric constants of the media and u = sin2ϕpB. It is shown that, for a given value of the normal-incidence amplitude reflectance |r|, there is an associated normal-incidence phase shift, δ = δmm, that leads to maximum minimum parallel reflectance, pmm. We determine δmm, pmm, ϕpBmm as functions of |r|. We find that, as |r| increases from 0 to 1, δmm decreases from 90° to 0, pmm/|r|2 increases from 0 to 1, and the associated ϕpBmm decreases from 45° to 0, all monotonically.

© 1983 Optical Society of America

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