Space-Variant Holographic Optical Systems using Phase-Coded Reference Beams.

摘要

A new holographic implementation of a sampling technique permits straightforward representations of two dimensional space-variant optical systems. The set of sample transfer functions required for the representation is sequentially recorded on a single holographic plate by utilizing a diffuser to produce phase-coded reference beams. The phase coding operation then acts to suppress crosstalk between the stored holograms when they are played back simultaneously. Because this approach does not depend on volume effects in the recording medium in an essential way, the holograms can either be produced digitally or optically. Basic concepts and the results of experimental investigations are presented and discussed. (Author)