title: Astigmatic coherence sensor for digital imaging.
abstract: We present a novel sensor that measures the entire spatial coherence function within an aperture by use of a variable astigmatic lens. This sensor permits digital capture and processing of partially coherent fields. We demonstrate the sensor by sampling and computing the coherent modes of a three-dimensional incoherent source.
authors: Beckman Institute for Science and Technology and Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, 405 N. Mathews Avenue, Urbana, Illinois 61801, USA.
authors: D M
authors: DM
authors: Marks
authors: R A
authors: RA
authors: Stack
authors: D J
authors: DJ
authors: Brady