VirtualLab Fusion provides various tools to make simulation workflows easier. A very important one among them is the Parameter Run, which sweeps over different value ranges for multiple parameters in an optical setup automatically.

VirtualLab Fusion provides various tools to make simulation workflows easier. A very important one among them is the Parameter Run, which sweeps over different value ranges for multiple parameters in an optical setup automatically. You can choose any parameter to vary, either physical values or numerical parameters, and check their influence on the result. Especially for the case of multiple parameters, different configuration modes of the Parameter Run are available: check all possible parameter combinations using the scanning mode; define a specific combination in the programmable/standard mode, or in a random manner, as the need may arise.

We construct a passive parity-time grating in VirtualLab Fusion and analyze it with the Fourier modal method (FMM, also known as RCWA) to show its asymmetric diffraction property.

Nowadays, many quantum-mechanical effects can be demonstrated with equivalent optical systems. As an example, a passive parity-time (PT) grating with separate modulation of the real and imaginary parts of the refractive index has been used to study the non-Hermitian parity-time symmetry. We construct such a passive PT grating in VirtualLab Fusion and analyze it with the Fourier modal method (FMM, also known as RCWA) to show its asymmetric diffraction property.

Diffraction is a very representative phenomenon that shows the wave nature of light. We demonstrate two typical fundamental effects in VirtualLab Fusion: the diffraction caused by aperture truncation and the diffraction due to wavefront aberration.

Diffraction is a very representative phenomenon that shows the wave nature of light. It explains the behavior of light in the region of a geometric shadow. To take diffraction into consideration is often of concern in modern optics, which is beyond the scope of a pure geometric optics approach. We demonstrate two typical fundamental effects in VirtualLab Fusion: the diffraction caused by aperture truncation and the diffraction due to wavefront aberration.