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Proceedings Paper

The LINC-NIRVANA cryogenic interferometric camera
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Paper Abstract

The LINC-NIRVANA instrument is a 1-2.5 micron Fizeau interferometric imager, which combines the light of the two 8.4 m mirrors of the Large Binocular Telescope on Mt. Graham in Arizona. The cryogenic camera forms the heart of the science channel of this instrument, delivering a 1 arcmin diameter field of view with 5 mas spatial resolution. The center 10x10 arcseconds, initially limited by the size of the 2048x2048 Hawaii-2 detector, are used for science observations. For simplicity, the camera has a fixed, F/32 optical path of the combined beams, leading to wavelength-dependent sampling. We describe the main components of the camera, as well as present the calculations of interferometric performance and the required opto-mechanical tolerances. We demonstrate that specially designed components can reach these specifications.

Paper Details

Date Published: 30 September 2004
PDF: 10 pages
Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); doi: 10.1117/12.551400
Show Author Affiliations
Peter Bizenberger, Max-Planck-Institut fur Astronomie (Germany)
Dave Andersen, Max-Planck-Institut fur Astronomie (Germany)
Harald Baumeister, Max-Planck-Institut fur Astronomie (Germany)
Udo Beckmann, Max-Planck-Institut fur Radioastronomie (Germany)
Emiliano Diolaiti, Osservatorio Astrofisico di Arcetri (Italy)
Tom M. Herbst, Max-Planck-Institut fur Astronomie (Germany)
Werner Laun, Max-Planck-Institut fur Astronomie (Germany)
Lars Mohr, Max-Planck-Institut fur Astronomie (Germany)
Vianak Naranjo, Max-Planck-Institut fur Astronomie (Germany)
Christian Straubmeier, Univ. zu Koln (Germany)


Published in SPIE Proceedings Vol. 5492:
Ground-based Instrumentation for Astronomy
Alan F. M. Moorwood; Masanori Iye, Editor(s)

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