Imaging polarimeter for the mid-infrared

Craig H. Smith; David K. Aitken; Toby J. T. Moore

doi:10.1117/12.176723

1 June 1994 Imaging polarimeter for the mid-infrared

Craig H. Smith, David K. Aitken, Toby J. T. Moore

Proceedings Volume 2198, Instrumentation in Astronomy VIII; (1994) https://doi.org/10.1117/12.176723
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

Abstract

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.

Citation Download Citation

Craig H. Smith, David K. Aitken, and Toby J. T. Moore "Imaging polarimeter for the mid-infrared", Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); https://doi.org/10.1117/12.176723

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