The convolution method of solution of some problems in scalar diffraction for optical multicomponent systems including ones based on the Talbot or Lau effect is described. This work is a development of ideas of the diffraction theory treatment suggested by Cowlew and Hoodie. As example, the developed method has been applied to a double- grating system for which three configurations are found and investigated.
Alexander P. Smirnov,
"Convolution formulation of diffraction for grating system", Proc. SPIE 1991, Diffractometry and Scatterometry, (31 October 1994); doi: 10.1117/12.192045; https://doi.org/10.1117/12.192045