Abstract
The condition of minimum deviation (MD) by a transparent optically isotropic prism is re-derived, and expressions for the intensity transmittances and of an uncoated prism of refractive index n and prism angle α for incident p- and s-polarized light and their derivatives with respect to the internal angle of refraction θ are obtained. When the MD condition is satisfied, is maximum and is maximum or minimum. The transmission ellipsometric parameters of a symmetrically coated prism are also shown to be locally stationary with respect to θ at . The constraint on for maximally flat transmittance (MFT) of p-polarized light at and near the MD condition is determined. The transmittance of prisms represented by points that lie below the locus of MFT exhibits oscillation as a function of θ. No similar behavior is found for the s polarization. Magnitudes and angular positions of the maxima and minima of the oscillatory -versus-θ curves are also calculated as functions of α for a ZnS prism of refractive index in the visible.
© 2010 Optical Society of America
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