Angular range for reflection of p-polarized light at the surface of an absorbing medium with reflectance below that at normal incidence

Abstract

The range of incidence angle, $0<\phi <{\phi }_{\mathrm{e}},$ over which p-polarized light is reflected at interfaces between transparent and absorbing media with reflectance below that at normal incidence is determined. Contours of constant ${\phi }_{\mathrm{e}}$ in the complex plane of the relative dielectric constant ε are presented. A method for determining the real and imaginary parts of the complex refractive index, ${\epsilon }^{1/2}=n+\mathit{jk},$ which is based on measuring ${\phi }_{\mathrm{e}}$ and the pseudo-Brewster angle ${\phi }_{\mathrm{pB}},$ is viable in the domain of fractional optical constants, $n, k<1.$

© 2002 Optical Society of America

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