Title

Comparison of Harvey-Shack scatter theory with experimental measurements

Keywords

Harvey-Shack theory; Linear systems theory; Scatter from rough surfaces; Scatter theory; Surface transfer function

Abstract

Rayleigh-Rice or Beckmann-Kirchoff theories are commonly used to predict scatter results. However, in order to apply these theories in practice, inherent assumptions must be made that either limit the roughness of the surface under test or limit the predictions to small, paraxial incident and scatter angles. Various published reports show experimental scatter results and diffraction efficiencies that do not agree with these theories. One possible explanation for these discrepancies is that there is some confusion between whether the data being plotted is intensity or radiance. The quantity intensity is usually measured in the laboratory, not radiance. Using the Harvey-Shack theory, a Fourier linear systems theory based on using a surface transfer function, we show excellent agreement between experimental results and theoretical predictions. This holds true for scatter from rough surfaces as well as large scatter angles and angles of incidence. ©2004 Copyrigth SPIE - The International Society for Optical Engineering.

Publication Date

12-1-1997

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

3141

Number of Pages

128-138

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.287792

Socpus ID

58649084808 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/58649084808

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