Abstract

We analyze the polarization changes introduced by a rotated Dove prism on the linearly polarized light, using the Jones calculus. The state of polarization changes from the linear to a mildly elliptical one when a plane wave front passes through a rotated Dove prism: its semi-mayor axis is nearly parallel to the input plane of polarization, for any angle of rotation. The interferogram contrast remains high for all shearing angles in spite of polarization changes when the Dove prism is incorporated into a rotational shearing interferometer. These results are confirmed experimentally.

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