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Proceedings Paper

Holographic diffraction gratings based on photopolymers: achieved results and new opportunities in astronomical spectroscopy
Author(s): Andrea Bianco; Alessio Zanutta; Marco Landoni; Paola Galli; Chiara Righi
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Paper Abstract

In the astronomical field, the progressive increase in telescope size and in the complexity of the spectroscopic instrumentation has highlighted how the current technologies and traditional materials for dispersing elements do not completely meet the present and future requirements. Therefore, new materials and solutions have to be developed, not only to realize future astronomical facilities, but also to improve the performances of already available instruments and devices. In this context, the use of photopolymeric materials for the production of Volume Phase Holographic Gratings (VPHGs) is becoming an interesting approach thanks to their key properties, in particular the self-developing, high sensitivity and the simple manufacturing process. Here, the main design parameters and the strategy to address them will be presented considering the whole UV-NIR spectral range showing the actual capabilities together with the results obtained on real observing astronomical facilities.

Paper Details

Date Published: 20 February 2018
PDF: 9 pages
Proc. SPIE 10558, Practical Holography XXXII: Displays, Materials, and Applications, 1055804 (20 February 2018); doi: 10.1117/12.2291917
Show Author Affiliations
Andrea Bianco, INAF - Osservatorio Astronomico di Brera (Italy)
Alessio Zanutta, INAF - Osservatorio Astronomico di Brera (Italy)
Marco Landoni, INAF - Osservatorio Astronomico di Brera (Italy)
Paola Galli, INAF - Osservatorio Astronomico di Brera (Italy)
Politecnico di Milano (Italy)
Chiara Righi, INAF - Osservatorio Astronomico di Brera (Italy)


Published in SPIE Proceedings Vol. 10558:
Practical Holography XXXII: Displays, Materials, and Applications
Hans I. Bjelkhagen; V. Michael Bove, Editor(s)

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