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MODELING PINHOLE DIFFRACTION WITHIN SYSTEM
Time: 2020-07-08 12:44Source: infocrops.comWriter: infocrops
Diffraction effects are typically considered only at the exit pupil of a system and including intra-system diffraction (especially when it is caused by multiple truncations), as discussed by M. Mout et al., is a challenging task. With the innovations in Fourier transforms, you have direct and flexible control of the diffraction inclusion in VirtualLab Fusion 2020.1. As an example, we demonstrate the modeling of pinhole as well as surface aperture diffraction effects inside a low-Fresnel-number system, and compare the results with the typical exit pupil diffraction approach.
 
Pinhole Modeling in Low-Fresnel-Number System
 
 
With the flexible Fourier transform settings in VirtualLab Fusion, we model the diffraction effect from surface aperture and pinhole in a low-Fresnel-number system.
Fourier Transform Settings – Discussion at Examples
 
 
As one of the most fundamental technologies in VirtualLab Fusion, Fourier transforms connect the space and spatial frequency domains. We discuss the Fourier transforms settings at different examples and show the consequences.
 
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