Abstract

The appearance of interference blots and of the dislocation of interference fringes is studied by means of modeling an arbitrary inhomogeneous birefringent medium with rotating principal optical axes by a system of two birefringent plates. A theoretical explanation of these irregularities is given. Conditions for the appearance of interference blots and fringe dislocations are derived. A method of classification of singular points in the fringe patterns is presented.

© 1998 Optical Society of America

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