Elsevier

Optics Communications

Volume 43, Issue 6, 15 November 1982, Pages 409-413
Optics Communications

Roughness spectrum for surfaces of silver deposits

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Abstract

The roughness spectrum g(k) (or spectral density function) for surfaces of silver deposits is deduced from surface profiles determined by using microdensitometer analysis of micrographs of surface shadowed carbon replicas. We used a process based on the computation of autocovariance function (ACF) via the fast Fourier transform (FFT) algorithm. Results are compared with those provided by attenuated total reflexion (ATR) method. It is shown that the g(k) function is not perfectly gaussian as it is usually assumed.

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