Time resolved digital holography measurements of the nonlinear optical filters

摘要

A special dielectric edge filter extremely sensitive to any change in refractive indices, layer thicknesses and angle of incidence has been investigated using holographic pump-probe measurements at different intensity values. Different physical processes overlapping in time were found to occur, namely the Kerr effect, free-electron generation and their subsequent trapping. A numerical model was used to reproduce the experimental results and decouple these processes.