RoboPol: a four-channel optical imaging polarimeter

@article{Ramaprakash2019RoboPolAF,
  title={RoboPol: a four-channel optical imaging polarimeter},
  author={Anamparambu N. Ramaprakash and Chaitanya V. Rajarshi and Hillol K. Das and Pravin Khodade and Deepa Modi and Georgia V. Panopoulou and Siddharth Maharana and Dmitry Blinov and Emmanouil Angelakis and Carolina Casadio and Lars Fuhrmann and Talvikki Hovatta and Sebastian Kiehlmann and Oliver G. King and Nikolaos D. Kylafis and Alexandra Kougentakis and Andrzej J. Kus and Ashish A. Mahabal and A Marecki and Ioannis Myserlis and George Paterakis and E. Paleologou and Ioannis Liodakis and I. E. Papadakis and I. Papamastorakis and V. Pavlidou and Eugeniusz Pazderski and T. J. Pearson and Anthony C. S. Readhead and Pablo Reig and A Słowikowska and Konstantinos Tassis and J. Anton Zensus},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2019}
}
We present the design and performance of RoboPol, a four-channel optical polarimeter operating at the Skinakas Observatory in Crete, Greece. RoboPol is capable of measuring both relative linear Stokes parameters q and u (and the total intensity I) in one sky exposure. Though primarily used to measure the polarization of point sources in the R band, the instrument features additional filters (B, V, and I), enabling multiwavelength imaging polarimetry over a large field of view (13.6′ × 13.6… 
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