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Proceedings Paper

Design and commissioning of a dual visible/near-IR echelle spectrograph for the AEOS telescope
Author(s): Robert J. Thornton; Jeff R. Kuhn; Klaus-Werner Hodapp; Alan N. Stockton; Gerard Anthony Luppino; Mark Waterson; Michael Maberry; Hubert Yamada; Everett M. Irwin; Kent Fletcher
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Paper Abstract

The Institute for Astronomy has developed and recently installed a high-resolution cross-dispersed echelle spectrograph for use at one of the coudé foci of the AEOS 3.7-meter telescope, operated by the Air Force Space Command atop Mt. Haleakala on the island of Maui. The spectrograph features an optical arm for the wavelength range 0.5 - 1.0 μm and an infrared arm for the range 1.0 - 2.5 μm. We review the spectrograph design and present commissioning results obtained with both the visible and infrared arms. Both channels use a white-pupil collimator design to maximize grating efficiency and to limit the size of the camera optics. The visible arm of the spectrograph uses deep-depletion CCDs optimized for operation near 1.0 μm. The infrared detector is a 2048 x 2048 HgCdTe array (HAWAII-2) that has been developed by the Rockwell Science Center for this project. Both channels are equipped with slit-viewing cameras for object acquisition and control of a fast guiding tip-tilt mirror located at a pupil image in the spectrograph fore optics.

Paper Details

Date Published: 7 March 2003
PDF: 12 pages
Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); doi: 10.1117/12.462598
Show Author Affiliations
Robert J. Thornton, Univ. of Hawaii/Institute for Astronomy (United States)
Jeff R. Kuhn, Univ. of Hawaii/Institute for Astronomy (United States)
Klaus-Werner Hodapp, Univ. of Hawaii/Institute for Astronomy (United States)
Alan N. Stockton, Univ. of Hawaii/Institute for Astronomy (United States)
Gerard Anthony Luppino, Univ. of Hawaii/Institute for Astronomy (United States)
Mark Waterson, Univ. of Hawaii/Institute for Astronomy (United States)
Michael Maberry, Univ. of Hawaii/Institute for Astronomy (United States)
Hubert Yamada, Univ. of Hawaii/Institute for Astronomy (United States)
Everett M. Irwin, Univ. of Hawaii/Institute for Astronomy (United States)
Kent Fletcher, Univ. of Hawaii/Institute for Astronomy (United States)


Published in SPIE Proceedings Vol. 4841:
Instrument Design and Performance for Optical/Infrared Ground-based Telescopes
Masanori Iye; Alan F. M. Moorwood, Editor(s)

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