From desired reconstruction to hologram distribution in digitalholography

摘要

Procedures to calculate the complex amplitude in digitalholography are discussed. The determination of the complex amplitude inthe hologram has been achieved for: 1-D input distributions along lines(e.g. straight arbitrary tilted lines and lines of elliptical shape);and 2-D distributions on an arbitrary oriented plane. The calculation ofthe complex amplitudes in case of a 1-D input distribution is given inform of an analytical expression as a phase distribution. In the case ofa 2-D distribution the numerical procedure is based on the fast Fouriertransform algorithm, a coordinate transformation in the hologram and thesuperposition of appropriate phase terms