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Proceedings Paper

Partially spatial coherence beams: nonregular interference gratings and microscopy illumination
Author(s): Roman Castaneda; Francisco F. Medina-Estrada
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Paper Abstract

Spatial coherence beams, which propagate from a non-regular grating to a Fraunhofer observation plane, yield spatial coherence Moire patterns. Furthermore, as a result of the analysis of the corresponding interferogram, an effective Moire grating is proposed. In both critical and Kohler's microscope illuminations, Besselian coherence beams propagate between the exit pupil and the exit window of the illumination system. The size of their coherence patches is determined by the field stop of this system.

Paper Details

Date Published: 6 July 1999
PDF: 4 pages
Proc. SPIE 3572, 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications, (6 July 1999); doi: 10.1117/12.358401
Show Author Affiliations
Roman Castaneda, Univ. Nacional de Colombia Sede Medellin (Colombia)
Francisco F. Medina-Estrada, Univ. de Antioquia (Colombia)


Published in SPIE Proceedings Vol. 3572:
3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications

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