Abstract
WHILE experimenting with a pair of silvered glasses, as in the Edser and Butler method of calibrating a spectroscope, I found that if the films are rotated about an axis either parallel or perpendicular to the slit of the spectroscope, a second line appears alongside each line seen and gradually moves to a point midway between each as the angle of incidence of the light is increased. The light forming these two lines is found to be polarised perpendicular and parallel respectively to the axis of rotation, and the relative sharpness appears to vary with the condition of the surfaces.
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BEACH, A. Reflection of Polarised Light. Nature 124, 373 (1929). https://doi.org/10.1038/124373c0
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DOI: https://doi.org/10.1038/124373c0
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