Refractive telescope systems for future cosmic microwave background polarimetry experiments

Peter Hargrave; Giorgio Savini; Marcin Gradziel; Neil Trappe; Niall Tynan; Massimo Candotti; Anthony Challinor; Stig Sørenson; Peter Ade; Rashmi Sudiwala; Maarten van der Vorst

doi:10.1117/12.2054634

23 July 2014 Refractive telescope systems for future cosmic microwave background polarimetry experiments

Peter Hargrave, Giorgio Savini, Marcin Gradziel, Neil Trappe, Niall Tynan, Massimo Candotti, Anthony Challinor, Stig Sørenson, Peter Ade, Rashmi Sudiwala, Maarten van der Vorst

Author Affiliations +

Proceedings Volume 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII; 915314 (2014) https://doi.org/10.1117/12.2054634
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

This paper presents the key findings of an ESA-funded programme of work to investigate refractive systems and their application to precision polarimetry experiments. We briefly summarize the derivation of requirements on the optical system for CMB polarimetry, and the design of a refractive telescope system which meets these stringent requirements. An extensive programme of experimental work was undertaken in order to better understand the optical, thermal and mechanical characteristics of the lens material, and of lenses made from this material. A repeatable and controllable antireflection coating procedure was developed and validated, and used to coat lenses used in this study. Optical measurements before and after coating have been used to validate a new module for an industry-standard antenna modelling software package.

Citation Download Citation

Peter Hargrave, Giorgio Savini, Marcin Gradziel, Neil Trappe, Niall Tynan, Massimo Candotti, Anthony Challinor, Stig Sørenson, Peter Ade, Rashmi Sudiwala, and Maarten van der Vorst "Refractive telescope systems for future cosmic microwave background polarimetry experiments", Proc. SPIE 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, 915314 (23 July 2014); https://doi.org/10.1117/12.2054634

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available