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NIMPOL: An Imaging Polarimeter for the Mid-infrared

Published online by Cambridge University Press:  16 May 2016

Craig H. Smith ,
Toby J. T. Moore ,
David K. Aitken  and
Takuya Fujiyoshi
Craig H. Smith
Affiliation:
School of Physics, University College, UNSW, Australian Defence Force Academy, Canberra, ACT, 2600, [email protected], [email protected]
Toby J. T. Moore
Affiliation:
School of Physics, University College, UNSW, Australian Defence Force Academy, Canberra, ACT, 2600, [email protected], [email protected]
David K. Aitken
Affiliation:
School of Physics, University College, UNSW, Australian Defence Force Academy, Canberra, ACT, 2600, [email protected], [email protected]
Takuya Fujiyoshi
Affiliation:
School of Physics, University College, UNSW, Australian Defence Force Academy, Canberra, ACT, 2600, [email protected], [email protected]
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Abstract

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We have built an imaging polarimeter for use at mid-infrared wavelengths (i.e. N band or 8–13 μm). The detecting element is a 128 × 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 arcsec of sky with 0·25 arcsec pixels. We describe the optical design, control electronics, observing modes and detector sensitivities. Also presented are some observational results to demonstrate the power of this new imaging polarimetric system.

Keywords

instrumentation: infraredpolarimetry
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 14 , Issue 2 , 1997 , pp. 179 - 188
Copyright
Copyright © Astronomical Society of Australia 1997

References

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