Numerical inversion of wavefront propagation dynamics with spatial nonlinearity

摘要

In this paper, we numerically explore the process of radiation wavefront propagation in the bulk of nonlinear media with spatial nonlinearity. We offer the following concept: the wavefront spatial distribution at the output plane of the nonlinear medium can be defined by digital holography; then, we use a mathematical model describing the dynamics of the wavefront in the medium to numerically back-propagate it from the output plane and to obtain the spatial distribution at the entrance plane of the medium. The proposed concept is tested numerically.