Imaging polarimeter for the mid-infrared

Details Imaging polarimeter for the mid-infrared Imaging polarimeter for the mid-infrared

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2198..736s&link_type=abstract

Proc. SPIE Vol. 2198, p. 736-743, Instrumentation in Astronomy VIII, David L. Crawford; Eric R. Craine; Eds.

Astronomy and Astrophysics

Astronomy

11

Scientific paper

We have built an imaging polarimeter for use at mid-IR wavelengths (i.e. N band or 8 - 13 micrometers ). The detecting element is a 128 x 128 element Si:Ga Focal Plane Array, supplied by Amber Engineering, USA. The polarimeter itself provides diffraction limited images on a 4 m class telescope and has a field of view of about 32 arcseconds of sky with 1/4 arcsecond pixels. The two orthogonal planes of polarization can be imaged simultaneously so that each integration provides an independent measure of polarization. This instrument had a successful commissioning run in July 1993, and the polarization beam splitting assembly will be commissioned in May of this year.

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