Optical role of randomness for structured surfaces.
It has long been known that random height variations of a repeated nanoscale structure can give rise to smooth angular color variations instead of the well-known diffraction pattern experienced if no randomization is present. However, until now there have been few publications trying to explain this and similar phenomena taking outset in electromagnetic theory. This paper presents a method for analyzing far-field reflection from a surface constructed by translated instances of a given structure. Several examples of the effect of random translations are given.
Villads Egede
VE
Johansen
D003198:Computer Simulation; D008027:Light; D015233:Models, Statistical; D010783:Photometry / Q000379:methods*; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation; D013499:Surface Properties