Astigmatic coherence sensor for digital imaging |
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| Authors: | Marks D M Stack R A Brady D J |
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| Affiliation: | 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. |
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| 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. |
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