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Proceedings Paper

Design and construction of a multiple integral-field unit for 8-m telescopes
Author(s): Deqing Ren; Jeremy R. Allington-Smith; Ray M. Sharples; George N. Dodsworth
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Paper Abstract

Integral Field Spectroscopy (IFS) is a powerful tool for astronomy, of particular importance to large aperture telescopes. We have designed and constructed a prototype integral field unit (IFU) for multiple-IFS which may be deployed to any desired position in a 30' diameter field of view and will deliver a good image quality simultaneously at visible (0.45 - 1.0 μm) and near infrared (1.0 - 1.8 μm) wavelength ranges. The design and construction of the multiple-IFU for the prime focus of an 8-meter telescope is discussed in this paper. The IFU uses optical fibers whose flexibility is an important advantage for a multiple-IFU. Simple and compact optics is essential for the design of the IFU. Key design issues, such as the fore-optics, microlens array and fiber bundle, are described in detail. Finally the achievable performance of the IFU is estimated.

Paper Details

Date Published: 30 January 2003
PDF: 8 pages
Proc. SPIE 4842, Specialized Optical Developments in Astronomy, (30 January 2003); doi: 10.1117/12.456668
Show Author Affiliations
Deqing Ren, Univ. of Durham (United Kingdom)
Jeremy R. Allington-Smith, Univ. of Durham (United Kingdom)
Ray M. Sharples, Univ. of Durham (United Kingdom)
George N. Dodsworth, Univ. of Durham (United Kingdom)

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

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