Galway Liverpool Imaging Polarimeter  –  GLIP:  design and prototype status

Eoin G. P. O'Connor; Éamonn J. Harvey; Nicholas Devaney; Iain A. Steele; Roberto Varas

doi:10.1117/12.2629283

29 August 2022 Galway Liverpool Imaging Polarimeter – GLIP: design and prototype status

Eoin G. P. O'Connor, Éamonn J. Harvey, Nicholas Devaney, Iain A. Steele, Roberto Varas

Proceedings Volume 12184, Ground-based and Airborne Instrumentation for Astronomy IX; 121847T (2022) https://doi.org/10.1117/12.2629283
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

The Galway Liverpool imaging polarimeter (GLIP) has been designed to perform simultaneous linear and circular polarimetric measurements at sub-second cadence. The science goal of the instrument is to perform observations of fast evolving astronomical transients with leading robotic telescope facilities. GLIP builds on the legacy of polarimeter instruments developed by the Liverpool Telescope team of the Astrophysical Research Institute, Liverpool, with the RINGO & MOPTOP series, and the National University of Ireland Galway (NUIG) with the GASP polarimeter. The instrument works as a four-beam imaging polarimeter of a 2.3 arc-minute field-of-view onto one detector, allowing the determination of the full Stokes vector [I Q U V] across the image field once the characteristic matrix of the instrument is known. Optical design, characterisation of polarimetry and tolerance of the instrument optical components using computational, lab testing result & mathematical methods will be discussed.

Citation Download Citation

Eoin G. P. O'Connor, Éamonn J. Harvey, Nicholas Devaney, Iain A. Steele, and Roberto Varas "Galway Liverpool Imaging Polarimeter – GLIP: design and prototype status", Proc. SPIE 12184, Ground-based and Airborne Instrumentation for Astronomy IX, 121847T (29 August 2022); https://doi.org/10.1117/12.2629283

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