Open Access Paper
17 November 2017 Cryogenic optical performance verification methods for optical components, coatings and optical systems
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Proceedings Volume 10563, International Conference on Space Optics — ICSO 2014; 1056349 (2017) https://doi.org/10.1117/12.2304225
Event: International Conference on Space Optics — ICSO 2014, 2014, Tenerife, Canary Islands, Spain
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 contributions and the achieved accuracies.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Navarro, E. Elswijk, M. J. A. te Voert, and L. Venema "Cryogenic optical performance verification methods for optical components, coatings and optical systems", Proc. SPIE 10563, International Conference on Space Optics — ICSO 2014, 1056349 (17 November 2017); https://doi.org/10.1117/12.2304225
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KEYWORDS
Cryogenics

Temperature metrology

Error analysis

Mirrors

Optical components

Wavefronts

Interferometry

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