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Hier finden Sie wissenschaftliche Publikationen aus den FraunhoferInstituten. Scattering from moderately rough interfaces between two arbitrary media
 Straka, S.A. ; Society of PhotoOptical Instrumentation Engineers SPIE, Bellingham/Wash.: Optical system contamination: Effects, measurements, and control 2010 : 2  5 August 2010, San Diego, California, United States; SPIE Conference on Optical System Contamination: Effects, Measurements, and Control Bellingham, WA: SPIE, 2010 (Proceedings of SPIE 7794) ISBN: 9780819482907 Paper 77940V 
 Conference on Optical System Contamination  Effects, Measurements, and Control <2010, San Diego/Calif.> Conference "Optics and Photonics" <2010, San Diego/Calif.> 

 English 
 Conference Paper 
 Fraunhofer IOF () 
Abstract
The generalized HarveyShack (GHS) surface scatter theory has been shown to accurately predict the BRDF produced by moderately rough mirror surfaces from surface metrology data. The predicted BRDF also holds for both large incident and scattering angles. Furthermore, it provides good agreement with the classical RayleighRice theory for those surfaces that satisfy the smoothsurface criterion. The twodimensional bandlimited portion of the surface PSD contributing to scattered radiation is discussed and illustrated for arbitrary incident angles, and the corresponding relevant roughness necessary to calculate the total integrated scatter (TIS) is determined. It is shown that BRDF data measured with a large incident angle can be used to expand the range of surface roughness for which the inverse scattering problem can be solved; i.e., for which the surface PSD can be calculated from measured BRDF data. This PSD and the GHS surface scatter theory can then be used to calcu late the BRDF of that surface for arbitrary incident angles and wavelengths that do not satisfy the smoothsurface criterion. Finally, the surface transfer function characterizing both the BTDF and the BRDF of a moderately rough interface separating two media of arbitrary refractive index is derived in preparation for modeling the scattering of structured thin film solar cells.