Abstract

A pair of thin prisms is used to deviate the light beam without changing the image orientation in a vectorial shearing interferometer. The relative angle between prisms determines the position of the wave front and its tilt. This system is employed to control the displacement of a sheared wave front as a vector quantity and to introduce a controlled amount of tilt in a novel interferometric shearing system. The predicted performance of this wave-front director is confirmed experimentally.

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