The use of half-tone screens in Fresnel zone plate imaging of incoherent sources

H. H. Barrett, D. T. Wilson, G. D. Demeester

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

An off-axis Fresnel zone plate may be used as a large-area "coded" aperture for imaging incoherent sources. The zone plate is sufficiently coarse that only shadow-casting, and not diffraction, is involved. It is shown here that the usefulness of this system can be greatly increased by using a half-tone screen to introduce a spatial carrier frequency and heterodyne the object spectrum into the passband of the zone plate.

Original languageEnglish (US)
Pages (from-to)398-401
Number of pages4
JournalOptics Communications
Volume5
Issue number5
DOIs
StatePublished - Aug 1972
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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