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Proceedings Paper

VPHG in the cold
Author(s): Andrea Bianco; Emilio Molinari; Paolo Conconi; Giuseppe Crimi; Enrico Giro; Claudio Pernechele; Filippo Maria Zerbi
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Paper Abstract

The need of new generation dispersing elements with higher throughput and with higher dispersion capabilities has now met a widely shared answer in the technology of Volume Phase Holographic Gratings (VPHG). Our group is increasingly involved in the design and realization of VPHGs both for edge basic research, testing different manufacturers, sizes and resolutions, and for existing instruments upgrades, letting observing astronomers to take advantage of new possibilities with higher performances in their common use instrumentations. In Asiago Observatory, we refurbished the AFOSC camera and spectrograph, whose twins are spread all over the world, from Chilean based ESO-Danish telescope, to Bologna (Italy) South Africa and China. In our laboratory we reproduced the cooled environment of infrared cameras, obtaining the first proofs of the good behavior of VPHG in future IR spectrograph designs.

Paper Details

Date Published: 30 January 2003
PDF: 9 pages
Proc. SPIE 4842, Specialized Optical Developments in Astronomy, (30 January 2003); doi: 10.1117/12.456698
Show Author Affiliations
Andrea Bianco, Osservatorio Astronomico di Brera (Italy)
Politecnico di Milano (Italy)
Emilio Molinari, Osservatorio Astronomico di Brera (Italy)
Paolo Conconi, Osservatorio Astronomico di Brera (Italy)
Giuseppe Crimi, Osservatorio Astronomico di Brera (Italy)
Enrico Giro, Osservatorio Astronomico di Padova (Italy)
Claudio Pernechele, Osservatorio Astronomico di Padova (Italy)
Filippo Maria Zerbi, Osservatorio Astronomico di Brera (Italy)


Published in SPIE Proceedings Vol. 4842:
Specialized Optical Developments in Astronomy
Eli Atad-Ettedgui; Sandro D'Odorico, Editor(s)

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