ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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9
Issue
vol 67 / September, 2024
Article
UDC 535.317.2

SHADOW IMAGE OF LINEAR GRATING AS A GEOMETRICAL MODEL OF SHEARING INTERFEROGRAM

M. E. Zatsepina
ITMO University; student


V. K. Kirillovsky
State Educational Establishment of High Professional Education “Saint-Petersburg State University of Information Technologies, Mechanics and Optics”; Professor


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Abstract. A fundamental analogy between classical interferogram and system of shadow image isophotes obtained by Foucault knife-edge method is discussed.
Keywords: shadow method, Foucault knife-edge, geometrical model of the shear cross interferogram, isophotometry, wavefront deformation