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Proceedings Paper • Open Access • new

Cryogenic optical performance verification methods for optical components, coatings and optical systems
Author(s): R. Navarro; E. Elswijk; M. J. A. te Voert; L. Venema

Paper Abstract

NOVA-ASTRON has delivered a suite of cryogenic astronomical instruments for large ground based telescopes as well as space missions. The instruments include polarimeters, spectrometers, cameras and interferometers, mostly operating at infrared. Several methods have been developed to verify or measure, under cryogenic conditions, the performance of optical components, coatings and complete optical systems. The test and verification setups presented in this paper include wave front error measurements, alignment inspection, spectral measurements, material properties determination and varying gravity orientation capabilities (gravity load vector). The measurement principles are explained, together with the most important error con tributions and the achieved accuracies.

Paper Details

Date Published: 27 August 2019
PDF: 9 pages
Proc. SPIE 10563, International Conference on Space Optics — ICSO 2014, 105634A (27 August 2019); doi: 10.1117/12.2304226
Show Author Affiliations
R. Navarro, NOVA Optical-Infrared Instrumentation Group at ASTRON (Netherlands)
E. Elswijk, NOVA Optical-Infrared Instrumentation Group at ASTRON (Netherlands)
M. J. A. te Voert, TNO (Netherlands)
L. Venema, ASTRON (Netherlands)

Published in SPIE Proceedings Vol. 10563:
International Conference on Space Optics — ICSO 2014
Zoran Sodnik; Bruno Cugny; Nikos Karafolas, Editor(s)

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