Design and measurement of the Stokes polarimeter for the COSMO K-coronagraph

We present the Stokes polarimeter for the new Coronal Solar Magnetism Observatory K-coronagraph. The polarimeter can be used in two modes. In observation mode, it is sensitive to linear polarization only and operates as a "Stokes definition" polarimeter. In the ideal case, such a modulator isolates a particular Stokes parameter in each modulation state. For calibrations, the polarimeter can diagnose the full Stokes vector. We present here the design process of the polarimeter, analyze its tolerances with a Monte Carlo method, develop a way to align the individual elements, and measure and evaluate its performance in both modes.

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Copyright 2013 the American Astronomical Society.
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Author Hou, J.
de Wijn, Alfred G.
Tomczyk, Steven
Publisher UCAR/NCAR - Library
Publication Date 2013-08-01T00:00:00
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Metadata Date 2025-07-12T01:17:04.104448
Metadata Record Identifier edu.ucar.opensky::articles:18210
Metadata Language eng; USA
Suggested Citation Hou, J., de Wijn, Alfred G., Tomczyk, Steven. (2013). Design and measurement of the Stokes polarimeter for the COSMO K-coronagraph. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7bz67m4. Accessed 31 July 2025.

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