3) A suspicious "quarter-wave" plate is checked by placing it between parallel polarizers (e.g. both horizontal): the transmitted intensity when the plate is oriented @ 45 degrees to the polarizers is 70% compared to the aligned position. Starting from the Mueller matrix for a rotated retarder, estimate the actual retardation in degrees.

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3) A suspicious "quarter-wave" plate is
checked by placing it between parallel
polarizers (e.g. both horizontal): the
transmitted intensity when the plate is
oriented @ 45 degrees to the
polarizers is 70% compared to the
aligned position. Starting from the
Mueller matrix for a rotated retarder,
estimate the actual retardation in
degrees.
Transcribed Image Text:3) A suspicious "quarter-wave" plate is checked by placing it between parallel polarizers (e.g. both horizontal): the transmitted intensity when the plate is oriented @ 45 degrees to the polarizers is 70% compared to the aligned position. Starting from the Mueller matrix for a rotated retarder, estimate the actual retardation in degrees.
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