Abstract

The methods of generating the cross derivatives of in-plane displacements by lateral shear interferometry and their subsequent addition are presented. Two approaches are introduced: (1) spatial filtering of composed diffraction structures and (2) moire superimposition of conjugate-type lateral shear interferograms. Experimental corroboration of the principle is presented.

© 1988 Optical Society of America

Generation of the derivative of out-of-plane displacements using conjugate shear and moire interferometry

Krzysztof Patorski
Appl. Opt. 25(18) 3146-3151 (1986)

Real-time optical differentiation for moire interferometry

Krzysztof Patorski, Daniel Post, Robert Czarnek, and Yifan Guo
Appl. Opt. 26(10) 1977-1982 (1987)

Optical differentiation of displacement patterns using moire interferometry

Krzysztof Patorski and Matgorzata Kujawinska
Appl. Opt. 24(18) 3041-3048 (1985)

Conjugate lateral shear interferometry and its implementation

Krzysztof Patorski
J. Opt. Soc. Am. A 3(11) 1862-1870 (1986)

Two-way gratings for strain analysis using moire and moire interferometry techniques

Krzysztof Patorski and M. Kujawinska
Appl. Opt. 25(7) 1105-1110 (1986)