Design of a polarimeter for the infrared camera OASIS.

Details Design of a polarimeter for the infrared camera OASIS. Design of a polarimeter for the infrared camera OASIS.

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999acasn..40..213y&link_type=abstract

Acta Astron. Sin., Vol. 40, No. 2, p. 213 - 222

Astronomy and Astrophysics

Astronomy

4

Polarimeters: Infrared Cameras, Polarimetry: Young Stellar Objects

Scientific paper

A near infrared polarimeter developed for the infrared camera OASIS of Okayama Observatory, Japan, is introduced. The polarimetric imaging can be formed in a field of view of φ ≡ 4.1' by attaching the polarimeter to the OASIS. The polarimeter consists of a rotatable achromatic half-wave plate and a fixed cooled polarizer. Linear polarization measurements can be carried out via the modulation of the half-wave plate. Test observations show that the polarization efficiencies in the J, H and K wavebands are 86.3%, 97.0% and 97.5%, respectively. Comparisons of OASIS polarimetry with previous observations are also presented.

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