Fourier Transform Settings

Discussion at Examples

Abstract


Many field solvers and functions are included in VirtualLab Fusion. They may either working in the space (x) domain or the spatial frequency (k) domain. To use different solvers and functions in connection, so to enable the modeling of complex systems, the transforming between x and k domain is a crucial step. Three Fourier transform algorithms are available in VirtualLab Fusion, and, with this document, we show how to set the options by discussing at different examples.

VirtualLab Fusion Configuration

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Use Case

Pinhole Modeling in a Low-Fresnel-Number System

With the flexible Fourier transform settings in VirtualLab Fusion, we model the diffraction effect from surface apertures and pinholes in a low-Fresnel-number system.

Use Case

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We show how to build up a shearing interferometer for the testing of laser beam collimation. By changing the collimation lens system, we observe the change in the interference fringes.

Use Case

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