Characterizing an unknown eliptical polarization

  • Thread starter Blanchdog
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Blanchdog
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Homework Statement:
See Uploaded image
Relevant Equations:
Jones Calculus: https://en.wikipedia.org/wiki/Jones_calculus
In reality I don't have access to the lab thanks to covid, so I was told that the exiting beam is linearly polarized at +12 degrees when the waveplate is rotated to +70 degrees. I tried plugging these numbers in but got back a complex number for the first component in the Jones vector, when it should have been a real, positive number. Also, how would a polarizer alone reveal the elipticity and directions of the major and minor axes?

Optics 13 prelim.jpg
 

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