In the 1970s Jones demonstrated a mechanical Faraday effect where a spinning window rotated linearly polarized light through a small angle. A similar treatment applied to orbital angular momentum predicts a rotation of an image through the identical angle. However, this latter effect can be interpreted as a transverse photon drag, also observed by Jones, acting around a rotation axis. Rather than translating the medium, the speed of which is limited by mechanical considerations, we translate the image and measure its lateral delay with respect to a similar image that has not passed through the window. Our initial results are not what we expected
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