Time‐dependent dynamical Bragg diffraction in deformed crystals by the beam propagation method.

This paper describes how to efficiently solve time‐dependent X‐ray dynamic diffraction problems in distorted crystals with a fast Fourier transform based beam propagation method. Examples are given of using the technique to simulate the propagation of X‐ray beams in deformed crystals in space and time domains relevant to the cavity‐based X‐ray free‐electron lasers and X‐ray free‐electron laser self‐seeding systems. [ABSTRACT FROM AUTHOR]