Apparent and real roughness

M. F. Ruiz Gale; E. N. Hogert; N. G. Gaggioli

doi:10.1117/12.695477

15 September 2006 Apparent and real roughness

M. F. Ruiz Gale, E. N. Hogert, N. G. Gaggioli

Proceedings Volume 6341, Speckle06: Speckles, From Grains to Flowers; 63411Z (2006) https://doi.org/10.1117/12.695477
Event: Speckle06: Speckles, From Grains to Flowers, 2006, Nimes, France

Abstract

Many studies to determine the parameters of rough surfaces by optical methods were made. Some of them are related to the problem of surfaces immersed in a liquid, making the assumption of the equivalence between the surface immersed and other surface with an "apparent roughness". This paper deal with this kind of problems making a theoretical study of the light scattered by a very rough reflecting surface, σ >> λ, and the light scattered by the same surface immersed in a liquid of refractive index n. The general Kirchhoff solution for scattering from a rough surface is used. This work shows that under certain conditions the mean scattered intensity from a surface immersed in a liquid can be quasi-indistinguishable from another surface not immersed, called "apparent surface".

Citation Download Citation

M. F. Ruiz Gale, E. N. Hogert, and N. G. Gaggioli "Apparent and real roughness", Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63411Z (15 September 2006); https://doi.org/10.1117/12.695477

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