Partially spatial coherence beams: nonregular interference gratings and microscopy illumination

Roman Castaneda; Francisco F. Medina-Estrada

doi:10.1117/12.358401

6 July 1999 Partially spatial coherence beams: nonregular interference gratings and microscopy illumination

Roman Castaneda, Francisco F. Medina-Estrada

Proceedings Volume 3572, 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications; (1999) https://doi.org/10.1117/12.358401
Event: 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications, 1998, Cartagena de Indias, Colombia

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.

Citation Download Citation

Roman Castaneda and Francisco F. Medina-Estrada "Partially spatial coherence beams: nonregular interference gratings and microscopy illumination", Proc. SPIE 3572, 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications, (6 July 1999); https://doi.org/10.1117/12.358401

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