Modelling of the optical performance of millimeter-wave instruments in MODAL

Gradziel, Marcin L., O'Sullivan, Creidhe, Murphy, John A., Cahill, Gary, Curran, Gareth S., Pryke, Clem, Gear, Walter Kieran ORCID: https://orcid.org/0000-0001-6789-6196 and Church, Sarah 2007. Modelling of the optical performance of millimeter-wave instruments in MODAL. Presented at: Terahertz and Gigahertz Electronics and Photonics VI, San Jose, CA, 21-22 Januray 2007. Published in: Linden, Kurt J. and Sadwick, Laurence P. eds. Terahertz and Gigahertz Electronics and Photonics VI. Proceedings of the SPIE , vol.6472 (6472) Bellingham, WA: The International Society for Optical Engineering, 64720D. 10.1117/12.700680

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Abstract

MODAL is an optical design and analysis package targeting the millimetre and sub-millimetre region of the electromagnetic spectrum. It is being developed at NUI Maynooth with the aim of integrating advanced modelling techniques and access to High Performance Computing into a user-friendly and yet very powerful tool for an (quasi-)optical designer. MODAL has been recently extended to allow integrated simulation of custom corrugated horns and dielectric lenses. This made it possible to model an existing instrument (QUaD), with the goal of optimising its performance. Here we present new results from analysis of the predicted performance of the QUaD telescope, with particular emphasis on polarisation information. They were obtained by using MODAL to model the whole telescope, with the distortion of the primary accounted for, for a range of component tilts and separations.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Uncontrolled Keywords:	Distortion; Equipment and services; Extremely high frequency; Lenses; Modeling; Optical design; Polarization; Simulations; Telescopes
Publisher:	The International Society for Optical Engineering
ISBN:	9780819465856
ISSN:	0277-786X
Last Modified:	24 Oct 2022 11:12
URI:	https://orca.cardiff.ac.uk/id/eprint/47307

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