Fresnel zone interferometric imaging

David J. Brady, Daniel L. Marks, Ron Stack

Research output: Contribution to journalConference articlepeer-review


Fourier analysis in projective coordinates shows similar inversion in the Fresnel zone. Since the longitudinal resolution of 3D coherence imaging falls inversely in the square of range in both the Fresnel and Fraunhofer zones, extension to the Fresnel zone dramatically improves longitudinal resolution by removing far-field range constraints. The utility of this method is demonstrated using rotational shear interferometers (RSI), which measure complete planes of coherence measures in a single frame. These experiments demonstrate that the incoherent field in an aperture may contain substantially more object information than conventional imaging systems detect.

Original languageEnglish (US)
Pages (from-to)205-206
Number of pages2
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
StatePublished - 1998
Externally publishedYes
EventProceedings of the 1998 11th Annual Meeting IEEE Lasers and Electro-Optics Society, LEOS. Part 2 (of 2) - Orlando, FL, USA
Duration: Dec 1 1998Dec 4 1998

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


Dive into the research topics of 'Fresnel zone interferometric imaging'. Together they form a unique fingerprint.

Cite this