Numerical Modelling of Gaussian Femtosecond Laser Pulse Propagation

Abstract

Ultrashort laser is a powerful tool that has found its use in various fields such as nanotechnology manufacturing. Its ultrashort burst of light generation combined with high peak power allows clean cutting, etching, and modification of nanomaterials with little remnants. The need for numerical modelling of ultrashort laser becomes a priority to accelerate development in research. The Finite Difference Time Domain and the Perfectly Matched Layer are used to simulate a propagating ultrashort Gaussian beam targeting the focal point. This results in the availability of information in given space and time. The results yield good accuracy and can serve as a baseline for continuous research in the subject.