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Systematic polarisation effects introduced by lenses and by axial birefringent half-wave plates used in CMB experiments in the millimeter region

Pisano, Giampaolo 2003. Systematic polarisation effects introduced by lenses and by axial birefringent half-wave plates used in CMB experiments in the millimeter region. Presented at: Polarimetry in Astronomy, Waikoloa, Hawaii, 22 August 2002. Published in: Fineschic, Silvano ed. Polarimetry in Astronomy (Proceedings of Spie). Proceedings of Spie , vol. 4843. The International Society for Optical Engineering, p. 348. 10.1117/12.459489

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Abstract

A lot of effort is currently devoted to the design of ground based experiments dedicated to the detection of the Cosmic Microwave Background Radiation Polarisation. The very low level of the expected signals requires a detailed study of the spurious effects introduced by each element of the optics. We use the well-known general formulae for the reflection and transmission coefficients in isotropic medium-uniaxial birefringent crystal interfaces for any angle of incidence and arbitrary birefringence optical axis orientation. Ordinary and extraordinary ray tracings are carried out and arbitrary incoming polarisation is used to calculate instrumental polarisation and depolarisation effects.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Lenses ; Polarization ; Radiation ; Reflection ; Optics ; Birefringence ; Crystals ; Interfaces
Publisher: The International Society for Optical Engineering
ISBN: 9780819446220
ISSN: 0277-786X
Last Modified: 04 Jun 2017 07:40
URI: http://orca.cf.ac.uk/id/eprint/66894

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