Abstract
The dispersive refractive index n(λ) and thickness d of thin films are usually determined from measurements of both transmission and wavelength values. Many factors can influence transmission values, leading to large errors in the calculated values of n(λ) and d. A method is presented to determine n(λ) and d in the region where k2 ≪ n2 from wavelength values only. This entails obtaining two spectra, one at normal incidence and another at oblique incidence. The method yields values of n(λ) and d to an accuracy better than 1%.
© 1985 Optical Society of America
Full Article | PDF ArticleMore Like This
C. Corrales, J. B. Ramírez-Malo, J. Fernández-Peña, P. Villares, R. Swanepoel, and E. Márquez
Appl. Opt. 34(34) 7907-7913 (1995)
Steven T. Kirsch
Appl. Opt. 20(12) 2085-2089 (1981)
Denis Pristinski, Veronika Kozlovskaya, and Svetlana A. Sukhishvili
J. Opt. Soc. Am. A 23(10) 2639-2644 (2006)