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Proceedings Paper

Spectral definition of the ArTeMiS instrument
Author(s): Vic Haynes; Bruno Maffei; Giampaolo Pisano; Didier Dubreuil; Cyrille Delisle; Jean Le Pennec; Norma Hurtado
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Paper Abstract

ArTeMiS is a sub-millimetre camera to be operated, on the Atacama Pathfinder Experiment Telescope (APEX). The ultimate goal is to observe simultaneously in three atmospheric spectral windows in the region of 200, 350 and 450 microns. We present the filtering scheme, which includes the cryostat window, thermal rejection elements, band separation and spectral isolation, which has been adopted for this instrument. This was achieved using a combination of scattering, Yoshinaga filters, organic dyes and Ulrich type embedded metallic mesh devices. Design of the quasi-optical mesh components has been developed by modelling with an in-house developed code. For the band separating dichroics, which are used with an incidence angle of 35 deg, further modelling has been performed with HFSS (Ansoft). Spectral characterization of the components for the 350 and 450 bands have been performed with a Martin-Puplett Polarizing Fourier Transform Spectrometer. While for the first commissioning and observation campaign, one spectral band only was operational (350 microns), we report on the design of the 200, 350 and 450 micron bands.

Paper Details

Date Published: 23 July 2014
PDF: 8 pages
Proc. SPIE 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, 915325 (23 July 2014); doi: 10.1117/12.2056980
Show Author Affiliations
Vic Haynes, The Univ. of Manchester (United Kingdom)
Bruno Maffei, The Univ. of Manchester (United Kingdom)
Giampaolo Pisano, The Univ. of Manchester (United Kingdom)
Didier Dubreuil, CEA-Saclay (France)
Cyrille Delisle, CEA-Saclay (France)
Jean Le Pennec, CEA-Saclay (France)
Norma Hurtado, Univ. zu Köln (Germany)

Published in SPIE Proceedings Vol. 9153:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII
Wayne S. Holland; Jonas Zmuidzinas, Editor(s)

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