Focusing of Femtosecond Pulse by Using a High-NA Off-Axis Parabolic Mirror

To fully characterize the focusing behavior of an ultrashort pulse, different electromagnetic properties must be considered. That includes both spatial distribution, temporal / spectral distribution, vectorial effect, and the possible coupling amongst all the above. As an example, the focusing process of a 10-fs pulse by using a high-NA parabolic mirror is modeled in VirtualLab Fusion, and both the spatial and temporal behaviors are investigated.