29 June 2006 Development of simultaneous imaging polarimeter
Author Affiliations +
Abstract
Accurate polarization measurements are obtained by modern imaging polarimeter and spectro-polarimeter that often employ a rotating λ/2 retarder plate and a Wollaston prism. In this configuration, the linear Stokes parameter U is measured after the measurements of the Q parameter by rotating the retarder plate, or vice versa. However, the resultant accuracy is not satisfactory, because of the tracking error of the telescope and changes in atmospheric conditions. In order to enhance the polarimetric accuracy and observational efficiency, we are constructing an imaging polarimeter which can measure the two linear Stokes parameters Q and U, simultaneously. The polarimeter features an unpolarized beam splitter and two Wollaston prisms, allowing the simultaneous acquisition of the four polarized images without moving parts.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kenta Fujita, Kenta Fujita, Maiko Nishida, Maiko Nishida, Yoichi Itoh, Yoichi Itoh, Tadashi Mukai, Tadashi Mukai, } "Development of simultaneous imaging polarimeter", Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 62693D (29 June 2006); doi: 10.1117/12.670232; https://doi.org/10.1117/12.670232
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT

Active Wollaston polarimetry
Proceedings of SPIE (October 13 2005)
Sparse aperture masking (SAM) at NAOS/CONICA on the VLT
Proceedings of SPIE (July 15 2010)
Polarimetry for the Gemini telescopes
Proceedings of SPIE (August 20 1998)

Back to Top