Abstract
During development of a Venetian Blind polarizer, high reflections and substantial pattern deformation were noted. Analysis showed that when the polarizer was illuminated slightly off axis, a degenerate mode was excited. This mode is resonant at the design center frequency, and was the cause of the problems. A design developed using dual vanes has been shown to be free of the problem. It also has greater bandwidth.
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Conroy, B.L., Hoppe, D.J. & Imbriale, W.A. Broadband venetian blind polarizer with dual vanes. Int J Infrared Milli Waves 14, 987–996 (1993). https://doi.org/10.1007/BF02084574
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DOI: https://doi.org/10.1007/BF02084574