Journal
ASTRONOMICAL JOURNAL
Volume 161, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.3847/1538-3881/abd2b1
Keywords
Polarimeters
Categories
Funding
- National Center for Atmospheric Research - National Science Foundation [1852977]
- Marianne and Marcus Wallenberg Foundation
- Directorate For Geosciences
- Div Atmospheric & Geospace Sciences [1852977] Funding Source: National Science Foundation
Ask authors/readers for more resources
The paper presents the design and performance of a polychromatic polarization modulator for the CRisp Imaging SpectroPolarimeter at the Swedish 1 m Solar Telescope. The trade-offs and procedures discussed in the paper are generally applicable in the development of broadband polarization modulators. The modulator has been operational since 2015, with measured performance close to optimal and differences between design and as-built modulator largely understood.
We present the design and performance of a polychromatic polarization modulator for the CRisp Imaging SpectroPolarimeter (CRISP) Fabry-Perot tunable narrow-band imaging spectropolarimer at the Swedish 1 m Solar Telescope (SST). We discuss the design process in depth, compare two possible modulator designs through a tolerance analysis, and investigate thermal sensitivity of the selected design. The trade-offs and procedures described in this paper are generally applicable in the development of broadband polarization modulators. The modulator was built and has been operational since 2015. Its measured performance is close to optimal between 500 and 900 nm, and differences between the design and as-built modulator are largely understood. We show some example data, and briefly review scientific work that used data from SST/CRISP and this modulator.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available