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The pseudo-Brewster angle ØpB, of minimum reflectance Rpm 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 = sin2øpB. 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, Rpmm. We determine δmm, Rpmm, øpBmm as functions of |r| . We find that, as |r| increases from 0 to 1, δmmdecreases from 90° to 0, Rpmm/|r|2 increases from 0 to 1, and the associated øpBmm decreases from 45° to 0, all mon otonically.

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Journal of the Optical Society of America (1917-1983)


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