Light scattering from rough surfaces with superimposed periodic structures

M. V. Glazov, Sergey Rashkeev

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Light scattering from realistic random rough metallic surfaces with superimposed periodic textures has been considered on the basis of the Kirchhoff wave scattering theory for smoothly varying surfaces. The theory is conventional and does not contribute to the intensively investigated case of roughness on the nanometer (or atomic) scale. It has been demonstrated that the presence of a regular structure on a metallic surface can change the relation between coherent (grating) and incoherent (diffuse) scattering to favor grating. For the smooth periodic structure, the ratio of coherent to incoherent scattering intensities grows linearly with the parameter (K·λ0), where K is the wave vector of the periodic structure and λ0 is the correlation length for random roughness. The surface height h of the periodic structure plays a less important role in the suppression of the diffuse scattering, but it gives an oscillating term in grating scattering intensity that can produce the "rainbowing" (or coloration) effect for such a surface. In practice, this may result in increased visual brightness of textured metallic surfaces and also in a new and interesting method of surface coloration control. The rapid development of focused beam texturing technologies leaves no doubt that patterns with a given spatial frequency and amplitude can be easily produced in experiments.

Original languageEnglish
Pages (from-to)217-223
Number of pages7
JournalApplied Physics B: Lasers and Optics
Volume66
Issue number2
Publication statusPublished - 1 Dec 1998
Externally publishedYes

Fingerprint

Periodic structures
Light scattering
light scattering
Incoherent scattering
Scattering
gratings
Surface roughness
roughness
scattering
Control surfaces
Texturing
color
incoherent scattering
wave scattering
Luminance
leaves
Textures
brightness
textures
retarding

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Atomic and Molecular Physics, and Optics

Cite this

Light scattering from rough surfaces with superimposed periodic structures. / Glazov, M. V.; Rashkeev, Sergey.

In: Applied Physics B: Lasers and Optics, Vol. 66, No. 2, 01.12.1998, p. 217-223.

Research output: Contribution to journalArticle

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