Abstract

It is apparent from the intensity reflection coefficient for p-polarized light of an ambient-film-substrate system $R(\theta )={\left|\frac{r_{01}(\theta )+r_{12}(\theta )e^{-i\delta }}{1+r_{01}(\theta )r_{12}(\theta )e^{-i\delta }}\right|}^2$, where r₀₁ and r₁₂ are ambient-film and film-substrate Fresnel coefficients, $\delta =\frac{4\pi d}{\lambda }\sqrt{n_1^2-{\sin }^2\theta }$, d and n₁ are the thickness and refractive index of the film, λ is the free-space-wavelength, θ is the angle of incidence, that one can obtain a sample with two Brewster angles (R(θ₁) = R(θ₂) = 0), if for given n₂ satisfy the equations

© 1998 Optical Society of America