Coded aperture correlation holography-a new type of incoherent digital holograms

A. Vijayakmar, Yuval Kashter, Roy Kelner, Joseph Rosen

Research output: Contribution to journalArticlepeer-review

95 Scopus citations


We propose and demonstrate a new concept of incoherent digital holography termed coded aperture correlation holography (COACH). In COACH, the hologram of an object is formed by the interference of light diffracted from the object, with light diffracted from the same object, but that passes through a coded phase mask (CPM). Another hologram is recorded for a point object, under identical conditions and with the same CPM. This hologram is called the point spread function (PSF) hologram. The reconstructed image is obtained by correlating the object hologram with the PSF hologram. The image reconstruction of multiplane object using COACH was compared with that of other equivalent imaging systems, and has been found to possess a higher axial resolution compared to Fresnel incoherent correlation holography.

Original languageEnglish
Pages (from-to)12430-12441
Number of pages12
JournalOptics Express
Issue number11
StatePublished - 30 May 2016

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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