Near-infrared spectrograph for a large telescope

Bruce Atwood; Paul Laurence Byard; Darren L. DePoy; J. Frogel; Thomas P. O'Brien; Patrick S. Osmer; Richard W. Pogge

doi:10.1117/12.211271

6 June 1995 Near-infrared spectrograph for a large telescope

Bruce Atwood, Paul Laurence Byard, Darren L. DePoy, J. Frogel, Thomas P. O'Brien, Patrick S. Osmer, Richard W. Pogge

Proceedings Volume 2475, Infrared Detectors and Instrumentation for Astronomy; (1995) https://doi.org/10.1117/12.211271
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

We present a design for a near-infrared (0.9 to 5.5 micrometers ) spectrograph for use on any large telescope. For example, the instrument meets all of the scientific and technical objectives requested by the Gemini Telescope Project for their facility infrared spectrograph. The features of the instrument include a wide range of rapidly selectable spectral and spatial resolutions, full-broad-band imaging, integral field spectroscopy, and several cross-dispersed modes. Much of the instrument is based on optical, mechanical, and electronic designs currently in use. The optical design has diffraction-limited performance and no vignetting over a 150" X 150" field of view. The mechanical design draws heavily on our extensive experience with cryogenic mechanisms and uses a cassette system for selection of the large number of possible configurations. The design is very modular and allows a staged implementation of the complete set of potential operational modes.

Citation Download Citation

Bruce Atwood, Paul Laurence Byard, Darren L. DePoy, J. Frogel, Thomas P. O'Brien, Patrick S. Osmer, and Richard W. Pogge "Near-infrared spectrograph for a large telescope", Proc. SPIE 2475, Infrared Detectors and Instrumentation for Astronomy, (6 June 1995); https://doi.org/10.1117/12.211271

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