A wavefront beam shifting and wavefront sampling apparatus

摘要

#$%^&*AU2015201302B220170216.pdf#####A WAVEFRONT BEAM SHIFTING AND WAVEFRONT SAMPLING APPARATUS ABSTRACT A wavefront beam shifting and wavefront sampling apparatus comprising: an optical relay system comprising: at least two wavefront relay stages configured to guide the propagation of a wavefront beam and to relay a wavefront from a wavefront object plane in a wavefront object space through at least one Fourier transform plane in at least one Fourier transform space to a wavefront image plane in a wavefront image space, wherein the at least one Fourier transform space is within the second or a following wavefront relay stage; and a sampling aperture positioned substantially at the wavefront image plane; and a beam shifting element positioned substantially at the at least one Fourier transform plane in the Fourier transform space and configured to intercept substantially the entire wavefront beam in the Fourier transform space.