The Moiré Pattern Produced by Overlapping Zone Plates

Abstract

Two separate approaches have been put forward to account for the moiré pattern produced by two overlapping zone plates. The analysis has then been extended to include the case of three overlapping zone plates. Several new relationships regarding the formation of the moiré pattern have been deduced and these are expected to find a more general application, particularly in the interpretation of images formed in the field-ion microscope.