Fresnel zone interferometric imaging

TitleFresnel zone interferometric imaging
Publication TypeJournal Article
Year of Publication1998
AuthorsDJ Brady, DL Marks, and R Stack
JournalConference Proceedings Lasers and Electro Optics Society Annual Meeting Leos
Volume2
Start Page205
Pagination205 - 206
Date Published12/1998
Abstract

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.

Short TitleConference Proceedings Lasers and Electro Optics Society Annual Meeting Leos