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Jashcraf / keck-polarization

Project repository for work in support of polarimetry and polarization modeling at W.M. Keck Observatory
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Vignetting #15

Open Jashcraf opened 1 year ago

Jashcraf commented 1 year ago

ORKID is designed to nominally fill the detector, so we don't actually need to do any vignetting analysis in particular. Just understand the maximum FoV constrained by the detector for a dual-channel polarimeter.

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The separation of the square and circular field stops in terms of the pupil plane correspond to 1.89 degrees and 2.67 degrees respectively. This controls our Walloston prism splitting angles, some commercial ones are found below:

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Jashcraf commented 1 year ago

This means a smaller effective field of view for the dual-channel polarimeter