Different users have different preferences regarding some of the settings. Watch our short video on customization in VirtualLab Fusion via snippets.

Providing maximum versatility for your optical simulations is one of our most fundamental objectives. The source concept employed in VirtualLab Fusion follows this spirit of customizability: not only can the user manipulate at will the temporal spectrum of the source and the functional shape of the base mode, but also the position and weight of the laterally shifted modes used to replicate the spatial coherence characteristics of the source. This document shows how to configure the latter two source properties (position and weight of the modes) via a piece of user-defined programming code.

The electromagnetic field on any plane, with arbitrary coherence characteristics, can be decomposed into coherent and mutually uncorrelated modes. In VirtualLab Fusion, one can always access the fully vectorial electromagnetic fields, and by means of the Programmable Detector, one can use the definition of the degree of coherence to calculate said magnitude on the detector plane. This example shows the calculation of the complex degree of coherence for Ex and Ey respectively.