Modeling the quasi-optical performance of CMB astronomical interferometers

被引：3

作者：

Curran, Gareth S. ^{[1
]}

Gradziel, Marcin L. ^{[1
]}

O'Sullivan, Creidhe ^{[1
]}

Murphy, J. Anthony ^{[1
]}

Korotkov, Andrei ^{[1
]}

Malu, Siddharth ^{[1
]}

Timbie, Peter ^{[1
]}

Tucker, Gregory ^{[1
]}

机构：

[1] Inst Technol Blanchardstown, Blanchardstown Rd N, Dublin 15, Ireland

来源：

MILLIMETER AND SUBMILLIMETER DETECTORS AND INSTRUMENTATION FOR ASTONOMY IV | 2008年 / 7020卷

基金：

爱尔兰科学基金会;

关键词：

Millimeter-Wave Bolometric Interferometer; CMB; polarization; quasi-optical; coupling; astronomy;

D O I：

10.1117/12.790500

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

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