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Proceedings Paper

Modeling the quasi-optical performance of CMB astronomical interferometers
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Paper Abstract

The Millimeter-Wave Bolometric Interferometer (MBI) is a ground-based instrument designed to measure the polarization anisotropies of the Cosmic Microwave Background (CMB) and contains a number of quasi-optical components, including a complex back-to-back system of corrugated feed-horn antennas. In this paper we use MBI as an example to demonstrate the existing modeling techniques and as a focus to develop extended modeling capabilities. The software we use to model this system targets the millimeter and sub-millimeter region of the electromagnetic spectrum and has been extended to efficiently model the performance of back-to-back corrugated horns embedded in larger optical systems. This allows the calculation of the coupling of radiation from the sky to the detector array through a back-to-back horn feed system.

Paper Details

Date Published: 18 July 2008
PDF: 10 pages
Proc. SPIE 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV, 70202O (18 July 2008); doi: 10.1117/12.790500
Show Author Affiliations
Gareth S. Curran, Institute of Technology Blanchardstown (Ireland)
Marcin L. Gradziel, National Univ. of Ireland, Maynooth (Ireland)
Créidhe O'Sullivan, National Univ. of Ireland, Maynooth (Ireland)
J. Anthony Murphy, National Univ. of Ireland, Maynooth (Ireland)
Andrei Korotkov, Brown Univ. (United States)
Siddharth Malu, Univ. of Wisconsin, Madison (United States)
Peter Timbie, Univ. of Wisconsin, Madison (United States)
Gregory Tucker, Brown Univ. (United States)


Published in SPIE Proceedings Vol. 7020:
Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV
William D. Duncan; Wayne S. Holland; Stafford Withington; Jonas Zmuidzinas, Editor(s)

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