Recovering the frequency dependent modulation function of the achromatic half-wave plate for POL-2: the SCUBA-2 polarimeter.
A spectro-polarimetric method is presented to allow the recovery of the frequency dependent polarization modulation function for an achromatic half-wave plate. We show how the non ideal nature of the modulator can be characterized for removal of both instrument effects and variations related to the source spectral index.
Optical Science Laboratory, Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, UK. giorgio.savini@astro.cf.ac.uk
Giorgio
G
Savini
Peter A R
PA
Ade
Julian
J
House
Giampaolo
G
Pisano
Vic
V
Haynes
Pierre
P
Bastien