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.
Savini
Giorgio
G
Optical Science Laboratory, Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, UK. giorgio.savini@astro.cf.ac.uk
Ade
Peter A R
PA
House
Julian
J
Pisano
Giampaolo
G
Haynes
Vic
V
Bastien
Pierre
P