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Proceedings Paper

Where have our VPHGs gone?
Author(s): Emilio Molinari; Andrea Bianco; Chiara Bertarelli; Paolo Conconi; Giuseppe Crimi; Enrico Giro; Filippo Maria Zerbi
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Paper Abstract

The new possibilities offered since few years by the use of Volume Phase Holographic Gratings (VPHG) in astronomy have not yet yielded a new generation of instrumentation. New larger telescopes await their light analyzing devices and the higher throughput, higher versatility and lower cost of VPHG still do not award their position. We seems to have reached a stability in gratings manufacturing but their use resides mainly in R&D sector. Our group in Italy does not walk too far off this road and proposes a series of non-conventional uses of VPHG aside of refurbishing of classical, existing instrumentation.

Paper Details

Date Published: 24 September 2004
PDF: 11 pages
Proc. SPIE 5494, Optical Fabrication, Metrology, and Material Advancements for Telescopes, (24 September 2004); doi: 10.1117/12.551458
Show Author Affiliations
Emilio Molinari, INAF, Osservatorio Astronomico di Brera (Italy)
Andrea Bianco, INAF, Osservatorio Astronomico di Brera (Italy)
Politecnico di Milano (Italy)
Chiara Bertarelli, Politecnico di Milano (Italy)
Paolo Conconi, INAF, Osservatorio Astronomico di Brera (Italy)
Giuseppe Crimi, INAF, Osservatorio Astronomico di Brera (Italy)
Enrico Giro, INAF, Osservatorio Astronomico di Padova (Italy)
Filippo Maria Zerbi, INAF, Osservatorio Astronomico di Brera (Italy)


Published in SPIE Proceedings Vol. 5494:
Optical Fabrication, Metrology, and Material Advancements for Telescopes
Eli Atad-Ettedgui; Philippe Dierickx, Editor(s)

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